Someone (maybe a passenger or a new crew member or whomever you come up with) hits on Martin. Like really aggressively. Constantly. Like all the time.
At first, Douglas and Arthur think its totally hilarious, joke about it and tease Martin merciless about his admirer. But then something happens that makes Douglas realize that Martin is really freaked out and massively uncomfortable about the whole thing, because the guys is really pushy and always tries to corner him or touch him inappropriately and keeps sending him really disgusting messages and stuff.
Cue for the whole crew being angry and totally protective of their captain. ;)
Gen is fine as well as Douglas/Martin.