If you want something that will seriously kick your teeth in and make you seriously consider the fact that you might die, try Buck In Rut Extreme Horseradish. I tried this at a weekend of fire near cinci ohio last year (and stupid me even entered a contest to see who can eat 10 full teaspoons of this the quickest...i only got down 2 and had to stop)...try it if you dare. No I do not make and no I have no affiliation to this company...im just one of the lucky (or unlucky) people to have bought this product. It is great with something like hotdogs..but alone...wow!
http://baldeaglefoods.com/product.sc?productId=1
http://baldeaglefoods.com/product.sc?productId=1