FYI:
Ordinary "peppers" Scoville rating: 0
Jalapeno peppers (if you get a pizza with little bits of chopped chilli on it, these are usually Jalapeno - and for most people they taste too hot!) Scoville rating: about 5,000
Scotch Bonnet (about the hottest thing you can buy in a very specialist shop) Scoville rating: between 80,000 and 300,000. ARGHH!
Savina Habanero (a rare Mexican chilli) Scoville rating: about 550,000. (hello asses of fire!)