I definitely could! It would probably only add a line to each post-interaction dialog box. Something like this:

> A goblin jumps out of the vase and sneers at you!> What do you do?   Attack {Strength}   Frighten {Charisma}   Befriend {Charisma}   Trick {Charisma}   Escape {Dexterity}> Befriend> You offer the goblin a small snack from your satchel. They cautiously accept and begin nibbling.> {Roll: 12 vs. 16 -- Success!}> The goblin yips with joy and tugs your arm towards the vase.   Inside, you see a cache of gemstones worth 50 G.   When you turn to thank the goblin, they are gone.

The results would be a little odd-looking to people familiar with 3e and later editions, though, since I'm using the roll-under-ability-score mechanic from Basic/Expert D&D, instead of the roll-over-difficulty-class mechanic from modern D&D.