I love things like that. It's like you are in on an "inside joke." Brilliant.
Here's another joke for ya. A while back, they rented a machine from us for 10K/month for 3 months and couldn't pay. Long story short, after 2 months, my husband went in the middle of the night to the job site where they were using it and took it back.
I would then report it stolen and collect the insurance $$$... allegedly, of course!
Hey now, that's crazy talk!! Nobody trying to run some kinda scam, ya see?