mother in law madness!!!

My mother in law is pushing me to my wits end!! She's never really been interested but likes to pretend she is to other people, well she's been coming less and less to see my little boy and now only pops in for 10 mins, which would be fine. But she like to pick him up when he's sleeping and disturb him. She makes saracasric comments about how he should look at her and not me, and trying to tell me what my son likes and how to look after him! I send every minute of the day with my son I know how to look after him and what he likes!! He cried the whole time she had him today and then when he cried to long she thrusts him in my face and says there you go mummy! Ahhh!! Luckily my husband agrees with me that she's being selfish! And thank god my mum and dad are actually helpful and come up and care for my son while I'll have my dinner once a week! That's what I need! Help not to be left with a crying baby on my own!!!! Grrrrr rant overs!!!