Well personally I don't get horse racing, but I appreciate that that must just be a "me" thing as many many other people swear by it for a good day out. For me it's more like going to a pub with my mates, getting drunk, but every 15 minutes or so handing random people £20 and watching them walk away with it.

Comedy club in the evening sounds good.

http://www.intotheblue.co.uk/site/pages/-Laser-Wars-475.aspx

Ho ho!