“Fear Factor’s” latest stunt — serving contestants glasses of donkey semen, with a chaser of urine — had NBC executives living in terror, TMZ.com reported.

Sources close to the production told the gossip site that the network had several meetings over whether or not to include the tasteless taste test in the episode airing Monday. Ultimately, the challenge was allowed to run.

Contestants were apparently required to drink every last drop from both glasses to advance