The Dink Network

Your loops probably don't work because there's no wait() in them, without a pause the loop keeps going round and there's no time for the engine to do anything else, so it freezes.

This works:
loop:
wait(anytime);
say("baa", 1);
goto loop;

So does this:
loop:
say_stop("baa", 1);
goto loop;

This will crash/freeze/destroy:
loop:
say("baaaaa!!", 1);
goto loop;