At time 1 Fry joins line A.
At time 4 Leela joins line B.
At time 5 Bender joins line A.
At time 6 Hermes joins line B.
At time 8 Scruffy joins line A.
At time 9 Leela is done!
At time 16 Fry is done!
At time 19 Hermes is done!
At time 20 Nibbler joins line B.
At time 25 Nibbler is done!
At time 31 Bender goes to the back of line A.
At time 41 Scruffy is done!
At time 51 Bender is done!

Longest wait: Bender, 46 mins.
Shortest wait: Leela, 5 mins.