StumbleGlow.

StumbleGlow is your roommate and he recently made a video with your 'cranberry juice', even though you told him you put wine in it so you could skip work during the week StumbleGlow walks up to you, still in his costume from the video "Hey, what did you put in that drink, buddy?" He looks at you confused and a little bit drunk, he was still conscious of his actions, he was a little bit dizzy but he still spoke well

you only gave him something with cranberry juice.