While Lisa Kudrow may be popular with Friends viewers, reality TV star Spencer Pratt is definitely not a fan. Recently, Pratt posted a video to TikTok answering someone asking him to name the rudest celebrity he’s ever met. Without hesitation, he was quick to name Kudrow, though he kept it vague by not offering details about why he felt this way. In that video, Pratt had only referred to the Friends star as the “worst human” he’s ever met, and this even had fellow reality TV personality Bethenny Frankel chiming in to suggest she had her own interesting experience with Kudrow.

As Pratt says in the original video:

Spencer Pratt Says Lisa Kudrow Told Heidi Montag to Get Away From Him

Because the video picked up a lot of attention, Pratt later elaborated on what happened with follow-up videos posted to TikTok. He says the incident dates back to 2009 when he was trying to make the best of an awkward situation with wife Heidi Montag at a party where they didn’t feel welcome. According to Pratt, things got even worse when Kudrow approached the couple and told Montag to leave Pratt by suggesting that he was a serial killer. As Pratt says:

Kudrow has not yet publicly responded at this time to Pratt’s story.