I understand stud well, and I know that if you don't have enough cards for everyone to get a 7th street that your first goal should be to combine the burn cards with the stub and if you have enough cards that way, then you give everyone a 7th street down. If you don't have enough with the burns, then you use a community card.
I was thinking today of a screwy situation that might happen with a break-in dealer or just one that wasn't paying attention. Say you have 8 players still in on 7th st and your dealer starts dealing to the first couple spots and then realizes he's out of cards. You get called over and then find out that combining the stub and burn cards you won't have enough to give everyone else a 7th street face down. Now, 1-2 of your players already have 7th st... so what do you do? I don't think you can bring back 7th street from those players because they could easily give you the wrong card (intentionally or not), so I see two options, Option A) use a community card for the remaining players only and the other players keep their 7th st. Option B) If there are muck cards, possibly using the muck(?). I think I like option A better then B, but there might be another option I haven't thought of.
If you use either of these options may have to give a player the option to "declare himself all-in" (expression only, not actually all-in for those who aren't aware of this use of the term) where they are not included in the last betting round, and all other players bet on the side pot.
Have any of you run into this circumstance in stud?