The Texas Longhorns had their practice delayed for nearly two hours yesterday after a player reported finding an unknown white powdery substance on the field.  None of the players could identify it, and Mack Brown immediately suspended practice, while police were called to investigate.

After a complete analysis, experts determined the unidentified white substance to be the goal line.  Mack Brown resumed practice after a special agent concluded the team was unlikely to encounter the substance ever again.

(I didn't write this - I saw it posted on Facebook and thought I'd share)