my 11month old son is lovely, cuddly, smiley etc..... but if i need to do anything such as housework, decorating etc.... he will scream and scream until i pick him up, then he stops instantly!! his 3 year old sister goes to nursery and loves it, ive been trying with him at the same nursery for 8 weeks now and he will just scream until i return to pick him up (it doesnt matter if i leave him for 30mins or 3 hours) i dont have a clue how i can stop him getting so angry at being without me!! it really is rage with him, what can i do?