DJ disease

A disease that infects people in charge of the music mix at a gathering. Infection becomes apparent when the person changes the music too quickly, cutting off songs far before their proper ending. Symptoms typically present among narcissistic DJs, who mistakenly believe the crowd likes hearing the transitions more than the actual songs. Or they foolishly believe rapidly changing the songs "keeps things fresh". (In reality, it just makes the mix annoying and irritating.) When party hosts (who think they're a real DJ) copy this same bad behaviour, because they saw a pro DJ do it somewhere, it can be concluded that DJ disease is also highly contagious.