Quoting sballchic2:" Thank you all. I am not expecting him to be overly into it or anything. Its only a one day class... thats it"
Well if it really means that much to you, tell him. Honestly he probably wont get much out of it, so I wouldnt expect much. However, I know if it was something I really wanted, and if it would put me at ease, DH would do it. Just sit down and talk to him about it. Tell him how much it would mean to you, and that it is only one day. Surely one day isnt going to kill him.