Drinking from a Stolen Bottle

Hello and blessings, A young man took a bottle of drink from the yeshiva's kitchen, and it is clear that the yeshiva does not agree to this. However, what is the ruling after he opened the bottle? Since it is a carbonated bottle and the yeshiva cannot do anything with it, is it permissible to drink from it initially? Also, if someone drank from it after the fact, are they obligated to pay the yeshiva?

Hello 

According to the instructions of the Gaon, Rabbi Amram Fried, shlita

anyone who drinks is considered a thief. It is forbidden to drink, and if one drank, they are obligated to pay. 

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