Bloke comes in early from work shouts up the stairs "I'm home"
And hears a clatter from the bed room and his wife's say something so he runs up the stairs and opens the bedroom door there's his wife naked and on the floor 
"what's going on?"
"Well I was getting changed and when I heard you shout and it surprised me so much I think I'm having a heart attack"
This panics him and he runs down the stairs to the phone and while he is phoning 999 his son comes up to him and says 
"Uncle frank is in the wardrobe with no clothes on"
"What?!"
"Uncle frank ran into my wardrobe and he's got nothing on at all dad"
At this the bloke looses his temper slams the phone down and marches upstairs taking them two at a time goes into the kids room and wrenched the wardrobe door off its hinges and there stands his brother completely naked he grabbed him and yanked him out of the wardrobe and shouted at him
"YOU PIG! THE WIFE IS IN THERE HAVING A HEART ATTACK AND YOUR RUNNING ROUND THE HOUSE FRIGHTENING THE KIDS!"