"We had one of our own guys stand at a urinal," Helgen says. "That worked pretty well. It's hard to keep that up for a long time, but I don't think it was noticed.

"We tried different setups," Helgen says. "We put two and even three guys at urinals. If you put guys at spaces three and five, universally, the guy would go to one. If you put them at two and four, they would go to a stall."

The stall option added a wrinkle for Helgen and Kallin to deal with.

"Primary choice, only 5 percent will go to the stall for urination," Helgen says. "The percentage is more like 65 or 70 when there is a secondary choice or more."

But it is the overall results that people should pay attention to, Helgen says.

"The bottom line is that, out of 162 urination events," Helgen says, "not a single guy stood next to another guy when there was an option."

The pair got creative for their "grand finale," Helgen said. During one period of observation, there was a party in Lamont that supplied the props.

"At the end of the party, they had these big casks of ice," Helgen says. "Someone came and dumped the ice into the sink."

Seizing the moment, they did what any rational urinary experimenters would do.

"Being that the ice was there, what we did was fill urinals one and two high with ice to create any kind of barrier for comfortable urination," Helgen said. "I stood at position four and [the other guys] occupied the stalls."

Being that it was a slow night in Lamont, the guys had to wait a little while for a victim.

"Finally we had a guy walk in and without even thinking he went to [urinal] one," Helgen said. "Then it struck him and he thought, 'Wow. This is filled with ice."'

The victim took stock of the situation. He surveyed his surroundings and noticed that the only open and empty urinals were on either side of Helgen.

"He took a good 10, 15 seconds," Helgen said. "He was thinking about it, but I wasn't about to give him any help."

In the end, the man did what most rational men would do.