Your degree of devotion to an artist or band, in this case U2, whose concert or festival you are queuing to buy tickets for, determines the level of agitation you will feel towards a queue jumper.

Even queue jumpers who attempt to barge into the line behind you.

At four U2 concerts in Philadelphia and Atlanta, Helweg-Larsen and LoMonaco asked about 500 queuers how they felt about a series of line intrusions scenarios. The researchers tweaked the relative positions of the queuer and cutter, whether the cutter targeted a friend or not, and the length of the time the queuer had waited. They also noted respondents’ devotion to U2. The relative position of the cutter didn’t seem to matter, they found. “You’re equally screwed if you get jumped in line one ahead or five ahead or 10 ahead. You’re still set back the same,” she says.

Some interesting insights into the psychology of queuing however with the study making mention of “Line Nazis” and “Law of the queue”.