do you lick the food off the bottom side of the lid?
Only from Wellness Chicken and Sweetpotato Formula, the lid is the best part. 
Oh! And refried beans.
No, never. I’m afraid of jagged edges. Also, canned food doesn’t seem like food until it’s heated. Unless it’s applesauce. And that’s better from jars anyway. I have had refried beans stuck to the can lid though.
Here’s a map, please tell me which planet you folks live on. Are you storing your cans of refried beans upside down, sideways, or in zero gravity?
Pardon me! Casa Fiesta Spicy Re-fried Beans always have a thin residue around the edge of the lid that is completely separate from the settled mass in the rest of the can!
food comes in cans?
what?
like spam?
food?
The cans I open are generally cat food, so no.
I do, however, lick the foil lids of yogurt pots. A habit from the days when I couldn’t afford to buy yogurt very often and didn’t want to waste any.
That is the Hubble Deep Space Field. I recognize it. We’re off the edge of the map mate.
Thank you for admitting that you are over the edge.
I use the side of my forefinger as an ad hoc scraping utensil. I think my mother convinced me that licking a can lid is as dangerous as licking razorblades,
Can lids are certainly dangerous to the unwary. When I was about 12 I gashed my finger very badly on one. Like, “sitting on the floor with your head between your knees to avoid passing out” kind of badly. Not fun.
Come to think of it, the can was cat food that time too.
I’m sure it taught you a valuable lesson. Have you tried to eat catfood again since?
No. Most of our cans are the self-opening kind with some kind of ring-pull yoke. The edges of these tops are razor-sharp. When we wash them for the recycling, it’s best to be very, very careful, or the water will turn pink and you lose feeling in your fingers. No, nobody in our family licks them. Then again, if you offer any kind of food to our family you have about a 5% chance of it being accepted. Aspies are picky. So are Pussycats.
Licking can lids if done correctly is perfectly safe. It does require coordination and finesse. Hold the lid, with the interior side facing you, in front of your mouth. Extend the tip of your tongue to the center of the lid, slide the lid downwards in a motion that pulls the lid away from the tongue just as it reaches the outside edge. Repeat until the lid is clean. Place lid in recycle bin. Place recycle bin on curb for pick-up, see no one was hurt during the writing of this explanation.
My daughter did at at about the same age. It was the pull ring type. It was blood-dripping-on-the-floor kind of bad, that I had to hastily wrap paper towels around before deciding how to proceed.
Got stung on the tongue by a yellowjacket in a can of pop once, but never sliced any part of myself with a can or can lid. That yellowjacket really hurt too.
Why no poll?
Other than the recycling bin thing, this method works just the same for razor blades and knives.
Very good question. There was a purposeful reason that this wasn’t a poll. I didn’t want to lead the responses and wanted to hear this from your own perspectives which I must say are always enlightening. Even in my OP, I did not say if I licked the lid. I do. My rationale for this is that I absolutely hate to waste anything of which I am aware. I noticed in the lunchroom at work that a good percentage of people do lick the lid but I also work at a place were people are not well-to-do and I thought that might be a reason too. Plus, I’m starving by lunch time and if I can get a taste of food before the 4 minute microwave cooking time, Yippee. I was surprised to see that people licked the lid in public.