My cat got gorilla glue on his neuter incision, what should I do?

This will likely cause some discomfort, but is not going to otherwise be toxic. Try to clean as much as you can by flushing with water and wiping gently, but do not pull on anything, or put anything else on the wound. The glue will eventually come off within the next week or two. The only concern is that it may create an environment for infection, so keep an eye on the incision for signs of infection (redness, swelling and pus discharge). If you see anything of concern, then it will be best to take him to the vet for an exam. Otherwise, you can continue daily flushing until the glue is gone.

I hope that helps and Romeo gets better soon.