Different kinds of heat?
Have had a couple of discussions with my parents about this. They love radishes and horseradish, I can't stand them but I do eat somewhat hot peppers (I'm not a chilehead but a jalapeno popper is nice, I like serranos in salsa, love hot/spicy Thai and Chinese food).
So what is it about the radish family "heat" or pungency that makes it different? My folks can't stand hot peppers (or mustard greens) at all.
DH is pretty impervious to anything - he likes it all (I just swear he can't taste anything b/c he can't smell anything, has constant allergies). So he can't tell us what the difference is.