>>76321040This. Touching is battery. Go to the front, find out who he is, call cops, press charges.
If someone is hogging a spot just ask if you can work in. When they say no, go to staff and let them know someone is hogging, and ask them to deal with it. In the worst case, just chill and wait for him to finish and then complain to the manager/owner, and if that still doesn't work, find a new gym and leave bad reviews everywhere.
I'm so fucking glad my gym has 15 squat racks and like 7 flat benches specifically for bench press.