DS is nearly 17. He loves DS2 who is 5, and he adores him. They mess around together a lot, screaming, laughing, rough and tumble. This is all great. He babysits him sometimes and has recently graduated from babysitting when he is already in bed asleep to looking after him awake and putting him to bed. I pay him.
I just caught him playing with an aerosol of deodorant. He had given it to him to play with, with the lid off and was saying, oh no, don't press the button. WIBU not to let him babysit again? He is very keen to earn the money but I just don't think he has the maturity to understand the consequences of something like this.