Each of my 4 tires are missing 1 of the 5 lug nuts. How dangerous is this?

I never paid attention or realized until I thought I had a slow leak in my tire and a mechanic told me he can't take the tire off without the lug nut I was missing. He told me they were potentially in my trunk with my spare, in the center counsel or perhaps in my glove box. He recommended i go to the Honda dealership to get the lug nut so he could then check for the slow leak. It's been a few weeks since this but I'm super confused. Why are all four tires missing one lug nut? My car is driving around normally. Does anyone understand why all four tires are missing one? How urgent is it to replace them? It it expensive to have them put on. I know lug nuts themselves are not expensive

Tighten all your lug nuts and go buy some damn lug nuts and stop messing around!

It's super easy to put them on. (They might not even charge you for it.) That does sound dangerous though. It unbalances the wheels, causes uneven strain and makes them more likely to fall off. So I'd definitely get that taken care of as soon as possible.

You are overthinking. Buy the lug nuts, install them with a lug nut wrench (there's one in the trunk). Move on. The engineers did not put 5 lug studs so you can only put 4 lug nuts. Of course you can also be just trolling.

Someone has stolen the security lug nuts set that was on there before. Buy another.

Someone it FLAT OUT LYING. A missing lug nut would make it EASIER to remove the wheel, not harder.
Note: A DECENT mechanic has extra lug nuts in stock as replacements.

My tire shop has them in stock and will put them on for no charge. You need to find a better tire shop. There's no reason the tire can't be removed because of a missing lug nut.

At $2 each, the 4 missing lug nuts will set you back $8 and require about 4 minutes to install with your tire iron.

You don't know much about your car. Possibly your wheels had locks until the last time the tires were rotated and the idiot failed to put them back on, having misplaced the key. At any rate, you can buy lug nuts at a car part store- better yet, a set of wheels locks and keep up with it whenever you have your car serviced. Running with 4 out of 5 lugs on isn't especially dangerous, but you should make it priority to replace the missing lugs. Go on and look in the console, the trunk and glove compartment, and good luck, but I think they're laying on the floor of the last shop you went to.

Go and buy some lug nuts at the parts store. Ya big lug.

You are not missing a lug nut, you are missing the special key that goes into your locking lug nut. It has a nut on it and a shape that locks into your locking lug nuts so that you can put a wrench on them to remove them. Without the key it will be difficult to remove the wheels.