This one is definitely lighthearted. My Dad slept naked and would storm into my brother's and my bedrooms in the morning if we refused to get up, 'playing' Reveille on an imaginary bugle! He usually forgot his bathrobe before he did it. Down the hall, my mother would be in their ensuite, sitting on the toilet and farting herself stupid!
To this day, I still can't get the image/sounds out of my head!
Edit: that link's not supposed to be there - had to check my spelling!