Watt Second Puns

I had a little mishap with a pruning saw in the yard and asked my wife to patch my finger up. She's a nurse, so I figured she'd dress my wound better than I could. She started off with cleaning up the cut with a betadine swab.
Wife: "This might sting a little bit."
Me: Yup. Yup that stings.
Wife: Sing a song. It'll take your mind off of it.
Me: "Roooooxanne, you don't have to put on the red light, Those days are over you don't have to sell your body to the night..."
Wife: sideways look
Me: "Roooooxanne, you don't have to wear that dress tonight, Walk the streets for money you don't care if it's wrong or if it's right..."
Wife: sideways look
Me: "You know who sings that, right?"
Wife: "Yeah, the Police."
Me: "Who and the Police?"
Wife: "Sting?"
Me: "Yes it does."

Me: Hey, what are the units for power?

Friend: Watt.

Me: I said, what are the units for power?

Friend: Watt.

Me: No, I said what are the units for power?

Friend: JOULES PER SECOND