I had a bit of a nasty split with the ex, he's not my children's father, but in the 3 and a half years (of the 5 that we were together) that he knew them they did grow quite close and he still sees them regularly.
Apparently the other day when my children were at his (mum's) house, the subject of drugs was brought up by my youngest as she's learned a little about the subject in PSHE at school.
After talking with them for a little while my ex apparently said "I do lots of cocaine, only on a Tuesday though as I have you two on a Wednesday".
I'm just really peed off and concerned that if it's stuck with dd enough for her to repeat it to me that she might go to school and repeat it. I've had to tell him on multiple occasions in the past about keeping his jokes appropriate, he's predictable in his idiocy.
Am I being unreasonable?