We have a METHOD 😅 
Three mathematicians and three physicists are taking a train to a conference.  At the station, the physicists buy one ticket per person like normal people. The mathematicians, however, buy just one ticket for all of them.     The physicists are puzzled: "But the conductor will check tickets! You’ll get kicked off!"   "Don’t worry," say the mathematicians, "we have a METHOD."     On the train, the physicists take their seats while keeping an eye on the mathematicians. The mathematicians all squeeze into a single restroom. When the conductor knocks, a hand emerges from behind the door, holding the ticket. The conductor takes it, and the mathematicians ride without issues.

Mathematicians always find a way to optimize, even in the unpredictability of human behavior and unexpected checks! 😄