Yes, strange I know, but I've realised this is a pet peeve.
Seems that whenever there's a group photo - family, work, friends etc I always end up being 'pulled in' to the photo with some bloke's big hairy hand visible on my shoulder!
Sometimes it is DH's and sometimes it isn't (boss, co-worker, friend's DH etc)
I don't know, it just feels and looks so sort of possessive and domineering? 