DS1 who is almost 3 years old was on the couch and DS2 who is 4 months old was lying on the floor (I was on the floor next to him)
DS1 threw his 20cm toy car at ds's head!! Ds2 screamed and now has a cut/lump on his head.
Ds1 is ALMOST 3, so although he finds it hard to control his impulses, he knows throwing toys at others is not on.
I flipped it! I feel so bad now.
Looking back now I still don't think I could have been calm in that situation.