Empirical evidence that guns and penises are linked!
Mere sight of a gun makes police and public more aggressive, experts say
http://www.theguardian.com/us-news/2015/aug/05/gun-police-public-more-aggressive-psychology-weapons-effect?CMP=twt_gu
For decades psychologists have looked for evidence that weapons affect behavior, and a large body of research has borne out their suspicions: simply seeing a weapon whether a sword, hand grenade, tank or gun makes people more aggressive.
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Weapons increase all of those aggressive thoughts, feelings, hostile appraisals and the type of thinking that somebodys out to get you, or wants to hurt you, Bushman said.
Aggressive impulses can sometimes be strong enough to override common sense, studies have found. Confronted with a pickup truck driver who had stalled at a green light, drivers in one 2006 study were more likely to honk at the pickup with a rifle than they were at the pickup without a rifle. The study developed a similar 1975 experiment that also included a bumper sticker reading vengeance.
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Studies have also shown that carrying a gun tends to make people more likely to deliver electric shocks, increase paranoia about people and objects, and
increase testosterone. (The vast majority of perpetrators of gun violence are men, according to the APA.)
Link to the testosterone study:
http://faculty.knox.edu/fmcandre/guns-testo-aggress.pdf
So it appears that guns and penises really are linked.