This might border on being animal cruelty.
You, sticking the neighbors cat in a basket and then putting a couple rocks on top so he can't get away...
I felt bad for the thing for about point two seconds until you turned your back and it jumped out and ran away.
But I do worry a little bit about the next time you get your hands on him again.
One day that cat might fight back. Hopefully it will be when the kids next door are carrying it around by the neck rather than when you find something heavier to hold it down with.