Geezers On A Bench

A couple of geezers were sitting on a bench outside the nursing home, having a little chat:

- How are you, Tom? - asked Marvin.

- I'm not feeling well today - utterly exhausted - Tom replied.

- I pulled a muscle and it's killing me.

- That pulled muscle shouldn't make you so tired, though.

- Well, it does if you pull it a couple of hundred times....