Running Club Marks Blamed In Biohazard Scare – Yahoo! News

A white substance that investigators inititally identified as a potential biohazard turned out to be markings from a local running club, News 5’s Brian Hamrick reported.

The Hash House Harriers strike again! I used to run with the group in Houston back in the 80’s. The “hare” would lay a trail using flour and occasionally toilet paper. Our favorite trails were laid in the woods but out of necessity we also laid trails in the city. A short time later the pack(i.e. group of runners) would try to follow the trail and catch the hare. If all worked well the pack would finally catch up with hare at the end where we would have a little outdoor party.