Lol! I love the fireman with the big phallic hose and grin.
As far as exposure, it’s just as bad to underexpose as overexpose… you lose detail in both cases. In fact, provided you don’t blow out the whites, overexposing is better than correct exposure as far as getting a better picture. Naturally, you have to correct it in post, but that will noticeably reduce noise.
Set your camera to give you “blinkies” if you blow it out, and make sure only spectral highlights are blinking. You may run into issues shooting backlit subjects against a sky, but extreme contrast is a different issue entirely.