Insect and Spider Identification: Help me to identify this little sucker, lol., 0 by Spaceman32

Spaceman32 wrote:
I was bitten by this little guy, just 15-20 minutes ago. I watched him on my hand, sucking away, before I flicked him off, into the toilet. The bite it made wasn't significant enough that it's worth posting (probably because I got it early on), but I'm wondering if this critter is a smaller part of a bigger problem. mind you, I attempted to get a few pics of it, but this was a clear a pic as I could get... 4 or 6 legs and about 3 centimeters long. It seemed orange to me, with the black arrowhead design on its back, just as the photo looks.

Thank you for any input you can give me on this mystery :-)