Do what Ratboy says but instead call one of a random selection of anti-bot procedures.
Choices could be:
"What is [x] + [y] ?" where you have x and y as random numbers, randomly as "3" or "three".
"What colour is this box?" with a little random primary or tertiary colourd box.
"What is 'pustid' an anagram of?" (or any other random easy to guess anagram).
"What day was it yesterday?" (or what day is it in two days time etc etc).
You'd have to keep adding new ones and deleting ones defeated by spam bots, but at least it keeps you out of mischief ;)
Choices could be:
"What is [x] + [y] ?" where you have x and y as random numbers, randomly as "3" or "three".
"What colour is this box?" with a little random primary or tertiary colourd box.
"What is 'pustid' an anagram of?" (or any other random easy to guess anagram).
"What day was it yesterday?" (or what day is it in two days time etc etc).
You'd have to keep adding new ones and deleting ones defeated by spam bots, but at least it keeps you out of mischief ;)