...Make sure to check for ticks. On yourself, dogs, and children.
Caught this one in the shower yesterday. He was dead by the time I caught him and pulled it off. No idea when it bit me. I never even felt it.
There was a solid red ring to the black sharpie last night. When I woke up this morning, it was just the small, darker inner ring and that leg/knee was really sore. The outer ring developed throughout the day.