You can put the small container and ruined container in each other (they both disappear)

[eriktorbjorn]

>SENSA, INVENTORY
FC: Cryolink established to Sensa.
SENSA: Sensors indicate I'm holding...
  A small container
  A ruined box

>PUT RUINED BOX IN SMALL CONTAINER
Done.

>PUT SMALL CONTAINER IN RUINED BOX
Done.

>INVENTORY
I cannot sense a thing in my grasping extensions.

I'm pretty sure this is one of those bugs that was fixed in later games. We should check how they did it there.

[eriktorbjorn]

At least some later games have a check like this:

	       (<IN? ,PRSI ,PRSO>
		<TELL
"How can you put the " D ,PRSO " in the " D ,PRSI
" when the " D ,PRSI " is already in the " D ,PRSO "?" CR>)

(This particular one comes from Planetfall.)