Alright this is my character's best in game practical joke:
Dorn-Felder Syrah, a cleric and rogue of the laughing god Olidammara got into trouble in a dungeon crawl. He is not entirely fond of such escapades but since treasures were to be found he agreed to accompany the party.
This was the kind of dungeon that does very little harm hit point-wise. However, every single trap or creature seemed to drain strength. Naturally Dorn was reduced to 0 strength. As a cleric Dorn can easily remedy this by repeatedly casting lesser restoration. There was only one catch; the spell requires the somatic component and with zero strength... It just couldn't fly.
Whilst meditating for the lesser restoration spells he appended a request to be granted enough strength to be able to cast one spell from his deity, Olidammara. Olidammara asked what he would get in return. Dorn thought for a while and replied that he would drink the clerics in the Church Quarter of the nearby town Freeport into a stupor. Suddenly Dorn felt how he was filled with new strength. After casting the restoration spells he was beginning to feel like new again.
When Dorn returned to Freeport he immidiately began to prepare to make good his promise. Dorn purchased one gallon of sweet water, three barrels with tap, 40 gallons of white wine, a tent and furniture. Thereafter he spread the rumour that a famous cleric of Pelor, Marneus Calgar, was to speak for all interested parties in the Church Quarter.
The next day Dorn went disguised as a Pelor cleric to the Church Quarter and raised the tent and supplied it with the barrels and the furniture. In one barrel he poured one gallon of water and the other two barrels were filled to the brim with wine.
Dorn stood outside the tent an invited people to the seminar. He told them that seats would be scarce and that they should take their places as soon as possible. Some came in and waited... and waited. They could have some water, for it was a warm day. Naturally Dorn ran out of water. Instead they were welcome to have some of his private wine. Even though the wine was Dorn's personal property he let them drink that instead since the wait had turned out to be longer than expected.
Some clerics left but new ones arrived in their place. Dorn urged all guests to have drinks on the house while waiting. Soon, the clerics were all fed up with waiting for Marneus Calgar and told Dorn that they would leave. Dorn assured them that he would go and see what took the famous cleric Marneus Calgar so long.
Dorn went away and redisguised himself as Marneus Calgar. Meanwhile the clerics helped themselves to more wine. Finally Marneus Calgar arrived and began to introduce himself in person to all the guests. He made sure everybody got a drink. When everyone seemed ready (being sufficiently drunk) to listen to Calgar's message he got up on a dais.
"Welcome all ye who have gathered here this lovely day", Calgar begun. Suddenly Calgar ran out from the tent and cast
invisibility on the cloth. He toppled the tent poles and ran like hell all the way back to Drac's End. Leaving only a few cards depicting the symbol of Olidammara.
Twenty drunken clerics found themselves swimming entagled in an invisible weave crashing in to furniture and eachother. Outside the tent there were scores of happy people looking up from their afternoon chores.
Olidammar was pleased.
