Burning Idiot

I think I am officially an idiot when it comes to sun protection......Got the back covered with 30spf but failed to put any on my legs,face or neck. My illogical self told me I didn't need it cause,"I never burn on those areas". Now my legs,face and neck are burning red. You would think I would learn my lesson the FIRST time,but apparently the second lesson just drives the concept of "ALWAYS wearing sunscreen" home....