Latex gloves are the devil!
Seriously though, I have an extreme allergic reaction to latex, and I am starting to find out that latex allergies are very common in the world these days. I have almost died a few times because I wasn't aware that my food was prepared with latex gloves, thank goodness for epi-pens. So if using latex make sure the people you are feeding are aware that you used latex gloves.
I have had to pass up BBQ many of times because of latex!!!