The full getup! I'm not allergic, only small local reactions early in the year. But ever since that one sting, two summers ago, where the bee got lucky and hit a vein in my neck, I suit up all the time. Venom got into the blood supply and went system faster than anything. Ended up in ER. Never effected my breathing, but beet read from head to toe, hives, swelling with blue fingers. Not whining about it, it was actually a pretty amazing process to follow! Yea, I know I'm crazy....
So that, combined with the fact that we have skunks, there's always one hive with queen issues, times with little/no forage, etc., you just never know what going to happen out there.
Those times where I lift the lid on a normally docile hive and they fly at me like a train coming out of a tunnel, I'm glad I have it all on.