So today i took my 8 month old baby to playgroup where there is a 16mnth old boy who is know to be pretty boisterous. Anyway my baby and her little friend were playing on the mat with some toys (it was just them on the floor as most mums had gone home by this point) and this little boy comes over and slams down a wooden toy which landed about 30cm away from the babies. His mum just laughed (she is VERY relaxed on any for of discipline) and then he picked it up to do it again and as it went down it was so close to the babies it actually frightened mine and she started to wimper. I immediately put my hand on the toy and said very firmly that toys are not to be thrown and especially not around babies as it cohld hurt them. He took it well and went to his mum who said "its ok you didnt hurt her" and then started throwing wooden bricks which started him off again! I sighed quite loudly and moved my baby away and she then got up and left with her boy quite quickly. I feel bad for upsetting her but i felt thw babies were unsafe and she clearly wasnt going to ask her son to stop. Did i overreact??