Probably only there to get away from a nagging wife and peace and quiet (of sorts). Might have a few kids at home that are fighting and the significant other is yelling....
I would want to drink in peace tooooooooo.

I remember one time we were waiting for this older lady to walk across the lane so we could drive past. She was walking very slow without any noticeable disability. I surmised that she had grandkids and a daughter at home and wasn't in any hurry to get back. (cuz I had the same thing going on at my house at the time) Hubby and I got a laugh out of it.
If you run into people like you did, put a spin on it and it might help