I didn't want to make several threads lazy cow and flood the forum so I'm making one big thread 
My first AIBU is about my MIL. Apparently I don't let her spend enough time with her PFBGC. She gets him for 1 full day a week and alternates a half day with my parents. She also has at least one surprise pop in visit a week. She believes that I should bring DS to hers and that we should both stay for the day/ half day since I do the same with my parents. The difference is that my parents have animals that DS loves to play with (chickens, cats, dogs, goats) and they don't regularly pick fault with things I or DH do with our DS. AIBU to say no I don't have the time to stay for the day/half the day/more than an hour?
Second AIBU - My parents have found 'the perfect pony' for DS and would like us to go view the pony with them. They aren't meant to be even thinking about buying a pony until DS is at least 4 since I'll be doing all the looking after. But apparently this type of pony doesn't come along very often and I'd be foolish not to let them buy her. I'd have to look for a sharer or part loan then would have to consider eventually selling I don't sell my animals if DS lost interest. Not sure this really is an AIBU but I just don't think I have time for another, I already have 2 horses but my parents think I WBU to pass up the opportunity to have this super safe pony.
Last AIBU - We were planning on having our second DC when DS is 3-4 but DH thinks we should try for our second now so that they are close enough in age to be interested in similar things/ play together. I'd rather wait until DS is 4 but DH thinks I'm BU not sure why though as I'm the one who stays home?