In Bryan Singer's first of the mutant movies, "X-Men", a scene in the Statue of Liberty depicts Toad spewing a thick green goo at Jean which hardens to her face, blocking off her air. Due to her powers at the time (low-level telekinesis and low-level telepathy), she was unable to affect the slime and had to wait for Cyclops to save her, using his optic beam to smash the slime.
Now, that happened back in 2000, and we are now nearing the end of 2015. So, my question is: has this happened with anyone else? Surely Jean Grey isn't the only person Toad has used this life-threatening ability on? I am accepting all answers, from any comic, film, or cartoon canon, and in or out of universe explanations.