I was riding on Thameslink the other day, and a child, probably about 10-12 years old, was sitting on the seat facing me in a squatting position, with the soles of his shoes on the seat the whole time. It really bothered me. And his mother was sitting right next to him and did not say anything.

I mean, you do sometimes see people stretch their legs out and rest their shoes on the seat in front of them, which is already bad enough. But in that case only part of the shoe usually touches the seat. Here, he was squatting on it, so the entire soles of his shoes were on the seat.

So, I found this quite disgusting, and it made me think about the next person who was gonna sit there without knowing this.

I really wanted to say something, that he was making the seat dirty. But I was afraid they might get angry or react badly, so in the end I stayed quiet.

What would you have done? Would you have said something?