A woman kept having a strange problem with her bedroom wardrobe. Every time a bus passed outside, the wardrobe door would fall off. Tired of dealing with it, she called a repairman.
When the repairman arrived, he watched as a bus drove by — and just as she said, the door fell straight off its hinges.
“Alright,” he said, “I’ll step inside the wardrobe. Close the door behind me so I can see exactly what’s happening.”
He climbed inside, and the woman shut the door so he could inspect it from the inside.
Just then, her husband unexpectedly came home.
Hearing his wife talking to someone in the bedroom, he rushed in. Confused, he swung open the wardrobe door and found the repairman standing inside.
Shocked and furious, the husband shouted, “What the hell are you doing in there?!”
The repairman sighed and replied, “Believe it or not… I’m waiting for a bus!” 
