Brake Fluid Sloshing
The brake fluid reservoir cap has a tiny hole in it to allow the fluid level to easily go up and down. During autocross events (not so much at Drivers Ed events) the fluid will slosh around during aggressive maneuvering and squirt out of the hole. Ed Ruiz has a simple, though not elegant solution to this problem. Attach a towel to the cap with a rubber band and be merrily on your way. Sounds good to me.
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