I find the responses to this interesting; several mangers have made some jokes like this over the years (it was even something of a running joke with my last on

I find the responses to this interesting; several mangers have made some jokes like this over the years (it was even something of a running joke with my last one) and I never felt threatened. Perhaps because in my country you have employment protection laws so you can't just terminate someone's employment, which is rather different from many US states.