Anyone for tennis?

The first frost of the season and a beautiful start to the day. Hopefully the first of many so that a few wasps are killed off! They've been so aggressive this year, and I've had to call pest control five times! Two in walls and three in the ground. It's the ones in the ground that seem the worst. My poor grandson has been stung on two occasions (three stings the first time), my daughter had six stings when she tried to get them off him, and my son in law the second time!
Nasty beasties! :-/