I'll try to keep this brief. Tasked with a flight out of XXXX to the furthest rig we serviced at the time, myself and another pilot had to fly initially to YYYY to pick up a much needed pump seal. It was winter. It was crap weather. It was night. We flew to YYYY, picked up the seal, flew up to the rig where the helideck team met us with two huge trays of roast dinner. It was late at night. We had finished the meals by the time we got back to XXXX about 4 hours later, thinking that was a fun old evening. (sarcasm). Shutting down the aircraft and climbing out for the night, I noticed the seal still in the envelope in the cockpit. Not one person asked about that seal and nothing was ever said.
Oh and if any of you ever flew offshore in Gulf of Thailand, I'm pretty certain you've eaten a tuna sandwich many times.