Yeah, the talking unicorn just might do it.

"Thanks for the warning but as far as I'm concerned my roommate drugged me and I am hallucinating everything. So, I think I'm good."

In time he would have to eat those words, but not just yet.

"Since you're lost with me, do you mind if I tag along for a while?" It was nice to have company even in hallucinations. Unless said company was trying to rip you apart. He really hoped that wasn't going to happen.