They can find another line, or skip trying to be funny altogether if the only way they can think of is gendered and they can’t be arsed to check the gender of the person they’re talking to.
And lets be honest - it wasn’t that good a joke.
Either way, it really isn’t fucking difficult, and is definitely easier than whatever the fuck this mess is.
When I was a kid my parents wanted to open up an existing cavity under our house to build a basement, and that never happened because it (E: was discovered during the building inspection that it) was full of Radon. I guess I’m desensitised (but possibly slowly decaying a little faster than I should be…).