Have them all the time matey. Drive a Sprinter van and always getting nails, steel etc in the treads off site.
The probs with puncture repairs is now governed bu health and safety!!!! (fookers get everywhere!!)
Depending on the puncture location in the tread and the size of the hole left. I used to work in Kwik Fit years ago and we were told to just sell the customer a new tyre and blag the damage on the old. Even had one lad go onto Woodchurch road on a quiet spell and drop small nails into the road!!! BAD DAYS!!
There are some products out there, that are sprayed into the tyre thru the valve, that when activated by a puncture will seal the hole up tp 10mm diamiter! Forget the name tho, but shouldnt be hard to trace. Its not a foam, its liquid, acts like Radweld does in your cooling system.
IF IT HAS A HOSE THEN IM YOUR MAN
BETTER TO BURN OUT THAN FADE AWAY!