Dijon is usually mild
Wasabi isn't really hot, it just clears your head
...my so-called 'mates' at work got me a beauty one day at work... they asked me if I had ever tasted Wasabi and of course I hadn't so I had a healthy taste of it more so than you normally do of course and I can still hear their laughter ringing through my ears today lol!... bastards!... cheers.