I have heard this too, its not something i would have considered but then again i always had money so who knows?! I have heard of people dropping their bottle of vodka and licking it up off the floor between the glass...hand sanitizer nope never heard of that...i certainly wouldn't use these examples as a basis for comparison as to whether i was an alcoholic or not if you can help it...bad though...
I use listerine mouthwash which has alcohol in it but i dont drink it?!