This has happened on the last few dives.
Assemble gear, put weights in, remember that bailout bottle is empty, take regs off, fill bailout bottle, reattach regs, get fins mask gloves and computer out, put on gear, take off gear help dive buddy with "emergency problem occuring with gear assembly" put gear on, get in the water, get out of water with buddy to go solve dive gear related problem, get back in water, let air out and sink.
Pick one of the following:
Scene 1
Buddy has problem with equalizing ears, resurface, help buddy back to shore.
Scene 2
Buddy's computer is dead no depth guage, resurface, help buddy back to shore.
Scene 3
Buddy gets winded and cannot catch breath, resurface, help buddy back to shore.
Finish:
Go back in the water alone with buddy back on shore safe, do dive, and finally think to myself "This is what I should have been doing from the start." but then I think "boy if my buddy could be here she would have a great time on this dive"