Funny, we get called for much less than a hurt knee and failing vision via 911 every day. I don't have a choice other to send them to the ER if that is what they want. I recently went to a call where the young man thought he took too much "extenze"... Long story short, we checked vitals and asked if he wanted to be seen at ER for further evaluation. "Nah man, I got work to do now... just thought I was gonna die for a second." Anxiety and Panic... number one call type.