Ok i'm sorry for this but I don't have anyone to talk to and I want to get it off my chest. I just recently moved in with my husband and his mom. I really really miss my family being that this is the first time away from home, I cry myself to sleep every night (but that's not the point). Well my husband goes off to work in the mornings and his mother takes care of one of her little grandson. He is 3 years old and sooo very spoiled. I've told my husband how spoiled and annoying this little boy is but that's as far as it gets, he doesn't want to offend his sister. I'm pregnant but he doesn't seem to understand that and jumps on my stomach all the time. My husbands mom is always in her room and I'm stuck in the living room with this little boy. He throws his toys and food all over the place and when i tell him to pick them up he totally ignores me. He wants everything I have and goes thru all my stuff.....it's just so freakin' annoying and I can't even believe nobody does anything to straighten out this little kid. On the one hand I feel bad for him and want to help him learn things and behave but on the other I want to punch the crap out of him. Again sorry for this I just wanted to let it out...thanx for listening girls.

A lot of things that the 3 year old does sound like normal 3 year old things. The throwing things, not listening, and wanting things that aren't his sound like most 3 year old boys, including my son. Not that that's an excuse for his grandma not to watch him when that appears to me the agreement. Regardless of how he behaves, it isn't your job to babysit him, it's your mother-in-laws.
Have you tried talking to your mother-in-law? Maybe say something like "I'd feel more comfortable around (kids name) if you kept an eye on him". If saying anything doesn't help, is it possible to go back and stay with your family? Or is there anyway you can get out of the house during the day? I don't know the circumstances behind your moving in with your husband and his mom, but it sounds stressful.
thanks for the advice...it is very stressful...I've learned to completely ignore him which he doesn't like but he leaves me alone for a while...but ur right I'm not the babysitter so I'm not gunna look after him one bit...I don't get paid for it she does.....