A refuse collector is doing his rounds and notices one house in the street that doesn't have a wheelie-bin outside.
So he goes to the door and knocks. After a few minutes a young German man comes to the door.
"Where's your bin?", the refuse collector asks.
"I bin upstairs", the German man replies.
"No! Where's your bin?", he says.
"I bin upstairs havin' a excrement", the guy says.
"NO! WHERE'S YOUR wheelie-bin?", he continues.
The old man thinks for a minute then says:
"OK, you got me. I was really brutally killing and then chopping up a woman."