The problem is not so much something that you might do that
would make it unsafe, but something someone else might do. Don't say
that will not happen. I had a friend who had a stoke and dieded
reciently. Yea, there were several things that if eveyone knew about
them and understood the possible risk would be OK, but since he was
not able to pass along his knowledge and the people who were caring
for him knew nothing about it or what to do if they saw it.

It is just a very bad idea and as you know illegal.