This is a nice solution, but I think it speaks to just how enticing the problem is. This is the sort of tactic someone with a gambling addiction would employ. I don't say that to be rude to you: I've had to do similar things with regard to addicting infinite-scroll internet sites, and I definitely give in more than I'd like.
I am totally aware of my weakness in light of potential addiction, that's why I don't give it any chance, so you are spot on and it is not taken as rude at all.