Playing the third wheel can definitely make you feel like a lame, but there's a good chance that's your fault. Either get your own date, or leave and quit blockin'. If Kevin Sullivan had taken this advice—or if he were a reasonable person—he wouldn't have stabbed two people for kissing in front of him.

The 53-year-old was watching movies and drinking with a man and woman at the Star of the Sea Outreach Mission in Key West, Fla. Friday night. According to the Monroe County Sheriff's Office, the woman and the man began kissing at some point during the night, infuriating Sullivan, who responded by stabbing the two of them with a box cutter. 

The man and woman were hospitalized and Sullivan was found hiding behind the shelter. He was arrested and charged with use of a deadly weapon and aggravated battery. He's already guilty of jealousy.

[via New York Daily News