Rain, Lightning, Thunder
I get hit with T-Storms many afternoons in the spring. 1st: take off the glasses, you won't see well with the rain drops on them, 2nd: more distance breaking when going down hills, 3rd: don't take corners as sharp as you would on the dry road, 4th: relax and enjoy it! Be comforted in the fact you are not putting any money in the big oil machine while you are riding!