Computer guru: "You probably have a trojan."
Ignorant person: "Nah, I got McAfee."
Computer guru: "McAfee won't detect shit. And when was the last time you updated it?"
Ignorant person: "I dunno, the internet wouldn't work when it updated so I turned it off."
Computer guru: "OK, click actions then request remote assistance so I can work on the comp for you."
*Installs CCleaner, Malwarebytes, ASquared and SpyBot S&D - 5 hours later finds and removes 27 different adware, 8 spyware and 3 trojans then replaces McAfee with Avast*
Happier ignorant person: "Holy fuck it's faster."
Computer guru: "Of course it is you McAfee'tard!"