Don't you just hate it when you let out a sneaky fart in public, and it really stinks and the smell follows you round leading you to panic in case a) other people smell it and think you messed your pants, or b) you have messed your pants.
On a side note, I always find the most amusing part of having a colonoscopy (if there is such a thing) is when you're in recovery after and you have so much wind from all the gas they pump in to you. The nurse said to last time omw that it's better out than in! So there I am lying there half sedated in my gown farting away and totally not caring in the slightest!!
Sounds like you know what you're talking about Liam! My favourite is to wait till my boyfriend and his dad are engaged in fart wars, then let one rip and watch the confusion. For some reason no one suspects me till I fall off my chair laughing.