dd is 18months and if she is or has been playing with a toy and another dc picks it up to play with she goes into full on diva screaming mode! She's normally pretty easy going and doesn't (yet) take toys from others but its the high drama if someone takes something she perceives as hers (usually they aren't her toys!) that I find difficult to handle Any ideas how to teach her to share? I try to ignore her but find it hard.
I have agonised over this wiht ds 2 and a bit. My advice is don't worry, they are all rubbish at sharing and will continue to be until they are about 3. I'm just waiting, muttering "this too shall pass" when he clonks someone.
Once you can reason with her a bit more (prob 2 upwards) you might find that you can explain a bit more even if they then chuck themselves on the floor and head butt it - at least you know at that point that they've understood even if they don't like what you've told them. DS is much better at it now (2.2) and even if his initial reaction is "MINE!!" after you tell him to share he often passes something over and then immediately says "MY turn again mummy"....thinking he can have it back again -it's a battle ! I find it funny now as they all do it.