"On the upside, when I was a teenager, there was one incident where a fairly nice looking young lady who couldn't tell the difference was completely convinced that I had saved her from certain death. She was amazed I would pick up the "mean rattlesnake" and take it where it couldn't chase her down and attack her. My buddies were also unable to see the difference between the two species at least long enough for (as I remember) three hugs and one kiss (on the cheek, geez, I wasn't that much of a jerk!). You just never know where a little knowledge might come in handy."
You did good. Remember the Boy Scouts' motto, "Be prepared."