Content warning: bad #joke.

I asked where to get a new watch battery, and someone told me there was a stall in the market, and added "They'll probably tell you to come back in 20 minutes and collect it."

On my way to the stall, a witty comment formed in my mind. When they said to come back in 20 minutes, I'd say, "How will I know when 20 minutes have passed?"
Coz, you know, they have my watch.

Alas, they weren't busy and put in a new battery on the spot.

I'll show myself out. #humour