Tail ends and tall tales

Uncle Laurence and Auntie Maria have a really cool bell on their front door. You push it and jump as a tremendous shout blasts out from somewhere in the interior hallway yelling:
"Michael, get down here and take this dog out - the living room's stinking!".
Within moments Maria was opening the door and greeting us with her usual big welcoming smiles and hellos. Thankfully, by the time we got into the house's living room, Taz, the dog, had scarpered, or had been kicked out, one or the other, and Michael, Maria's eldest son, (or 'Big Michael' as he's now called in the family, whilst I, apparently, am now, 'Old Michael') was ambling down the stairs behind us. Megan and Lauren, my two younger cousins, were sat at the foot of the television stand, scribbling away with their pens and pencils, creating more colourful masterpieces (another pair of Reid artists, like their Dad, cousins, uncles and aunts before them). Once Michael had got rid of the dog and the coast was clear, Laurence appeared from upstairs and added to the speculation, perhaps started by myself, that Maria had been blaming poor Taz for her own misdemeanors to which she adamantly objected.
Laurence and Maria had invited Ka and myself round for Sunday dinner, which involved the ever popular joining of tables and the gathering of different sized seats. Before dinner, Michael kept us entertained with stories from sixth year involving many strange characters from his class, including 'Big Stuart' (whose apparently around eight feet tall) and 'Wee Cheesy' (whose around three feet tall). Michael, who counts Home Economics in his favourite subjects and makes the greatest birthday cakes known to man, stood at the kitchen door, telling us his tall tales whilst Maria slaved away in the kitchen and Laurence nipped out for the trifle's missing ingredient - custard. Most of Michael's tales involved folk farting and others inhaling, Big Stuart making things break by merely standing next to it or the teachers giving Michael and his mates attitude and vice versa, including one teacher who allegedly 'looks like a pedophile, but isn't'.
Michael then went on to rave about his favourite programme, a BBC three effort called 'Coming of Age'. This series is based around a bunch of school pupils who seemingly spend their time farting, breaking things and giving their teachers attitude. And who says the young are not easily influenced by the media?
Once Pauline arrived in from Ikea, we all sat to dinner. A fantastic sunday stew with puff pastry and veg. As we ate, Taz the dog and the cats circled the table, occasionally sniffing around to see if anyone would be foolish enough to give donations. The conversations ranged from the Blair With Project, other rubbish horrors and shadows in the dark to up and coming First Communions and receiving a more admissible Virgin bill.
Trifle was then served as pudding, which Big Michael demolished within seconds, before waving a quick 'Adious' and disappearing upstairs to his playstation.
As I finished my last spoonful of trifle, I just happened to look down at my feet. Moments before, Megan had abandoned the chair beside me in the search for shortbread and her darting away had revealed the lounging form of Taz lazing below, his arse pointed straight up at me. Nervously, I gulped the last of my trifle down and was just about to start edging away when the inevitable happened. With a gentle hiss, (like the subtle spray from one of those fancy automatic air fresheners in the ads that make the passer by smile and nod), the pungent, familiar stench of eggs rose up into the air from Taz's rear end. I groaned and after a short quizzical look from those gathered around the table everyone yelled in objection, diving for cover, using the bottom end of their cardigans, T-shirts and tops as last minute, makeshift gas masks as Taz was quickly evacuated from the living room once more.
With nose firmly covered, Maria yelled through her blouse and fingers at the ceiling, "Michael!! Take the dog out! He's stinking!".