My husband and I are both doing a first aid course with the red cross tomorrow which goes on all day so we're leaving my son (12 months) with his sister. I haven't really left him with anyone before (he's been with my parents for a couple of hours, but that's when they've been visiting for a few days and he's got used to them) and I'm panicking I'm going to scar him emotionally forever as he doesn't know my SIL all that well and he's pretty clingy (which is a vicious circle as that's one of the reasons why I haven't left him before). Handily enough my SIL lives next to where the course is taking place so I could pop back at lunchtime but I don't know if that would just make him upset again.