Certitude is that which exists!

Like they say, the best is always reserved for the last... Today was the last philosophy exam of the academic year. This time it was Epistemology and one of the many 'great' answers was the following. The question was about certitude and the types of certitude. I asked the Brother, what he meant by Physical certitude? The answer was this:

Physical certitude is that which exists.

I asked him to repeat and he stated the same. Explain, I said, and again the same answer. Well, I did not have a further question for him!