Thanks Pipeman! Looks cool! Gotta research!
Looks like these two neighbors work together on these:
I guess everyone needs to think ahead if Mc'y D's can get sued for dumbasses spilling coffee on themselves:
NOTE: Intended only for the temporary transport of liquid hydrocarbonsfor racing vehicles used in professional off road and closed course competition racing events. The Gas Bag Fuel Safe Bladder is not a portable or long-term fuel storage container as described by ASTM, EPA, ARB or other state or federal agencies.