He's over 45 lbs???? Holy cow! My 5-year-old is 45 lbs, and she isn't even skinny! I feel for you-lifting him in/out of the highchair, playpen, over baby gates, in/out of the stroller...that might be reason enough to think about ending it! lol...I think you've been more than accommodating dealing with this incredibly over-anxious mom. If she can't respect your policies, I think you'd be well within your rights to suggest a nanny instead. Parents have got to be able to let go a bit and TRUST us to look after their children. I tell parents that they will never find someone who parents exactly like they do in every situation, and if they need that, then group daycare isn't for them. Good luck!