Depends on your definition of damages.
I didn't think I was hurting anyone, but I broke up with two long term girlfriends and I pushed a lot of good friends away by choosing the bottle.
I worried my family and friends.
I didn't do as good as I could have in my work, and I eventually (after 15 years drinking) lost my career over my drinking.
I didn't think I was hurting myself but I've been in car smashes, put myself through a plate glass door, demolished a coffee table, fell down innumerable flights of stairs and did some pretty hefty damage to my reputation by being a jerk and being generally embarrassing.
I could go on...but I didn't think any of that was damage...at the time.
D