I looked at your code again and found an other bug:
Code:
my.event=decrease_health();
Dont use () for my.event!
And about the
Code:
my.push=-1;
I'm not sure if this works. Try it with my.push=5; or an other normal

push. Dont know what happens exactly when you set a negativ push but it could be wrong...
If it still doesnt work send me the whole script and the level.
nipx