If this is implemented, then also please ask the player if (s)he wants to interrupt the sacrificing every time the "god's opinion" changes (ie. goes from "pleased" to "very pleased" etc.). Also, propose interruption if god seems displeased about a particular offer. Finally, document somewhere exactly in which order the items are then sacrificed (from bottom to top like in extended drop, probably).

Also interrupt if a hostile or potentially hostile monster wanders into LoS (in which case you need to get off that altar in a hurry!).

An extra command for this would indeed be nice.

Probably, the some interrupts as what stops the 'w'alk command should also apply. Excluding encumbrance changes, max HP and PP; but definitely satiation from Hungry onwards. HP loss from poison or sickness, maybe not?

You offer 1st item to order

Mortal you have pestered me for too long!

You offer second item to order

The solar sacrifices you. you die!

I was thinking of hurthlings carrying around large numbers of different cooked corpses when I wrote this. That's the only thing I'd use it for actually.

*poof*
"Mortal, I thank thee for thy gen-"
*poof*
"Mortal, once again I-"
*poof*
"Mortal, truly this-"
*poof*
"Hey now, isnt this-"
*poof*
"Hold on for just a-"
*poof*
"Are you even listening to-"
*poof*
"Enough with the-"
*poof*
"Okay, that's it. Poof."
Your equipment turns to dust!

Thanks Grobblewobble. This might be problematic, food does change status or become non-existent through rotting. So, development will also have to take that into consideration.

I like the suggestion and it seems I've already upvoted it in the past, but I was probably thinking of sacrificing junk items that are either accepted or ignored entirely. As many others have mentioned above, there are many considerations and special cases to account for in other usage scenarios.