The human heart creates enough pressure when it pumps out to the body to squirt blood 30 feet. (O.M.G.!)

Easily. Depends on the prevailing wind!

Eerily, I can attest to this, more or less. We had a PB, PBAB, FTD (Poor Bastard, Pine-Box-At-Bedside, Failure-To-Die) post-cardiac-surgery gent on my unit in Boston with systemic infections and 4 or 6 pumps injecting "pressors" to keep his blood pressure up when all of a sudden his sutures let go and his heart went "Pop!"

I ducked. The wall was quite literally a bloody mess. OK, you can argue the effect of the pressors, but, if the wall weren't there, he would have easily made 50 feet.

Aside from fulfilling an annual urge to gross people out, I offer this to reinforce two points: 1) Don't smoke, and 2) Stay away from hospitals!

Jim