As the only female tuba player in her band, Sierra finds herself on the receiving end of more than her share of pranks. But this time, she plans to turn the tables and prank the rest of the band, by pretending to have been pranked by someone who stuffed a thick, red rubber hot water bottle in the bell of her instrument. She intends to have the last laugh, as she huffs and puffs mightily, steadily inflating something nobody expects her to even be able to budge. As it grows larger, she imagines all of her bandmates cowering in fear of the impending explosion. But first, she wants to test her pr...

As the only female tuba player in her band, Sierra finds herself on the receiving end of more than her share of pranks. But this time, she plans to turn the tables and prank the rest of the band, by pretending to have been pranked by someone who stuffed a thick, red rubber hot water bottle in the bell of her instrument. She intends to have the last laugh, as she huffs and puffs mightily, steadily inflating something nobody expects her to even be able to budge. As it grows larger, she imagines all of her bandmates cowering in fear of the impending explosion. But first, she wants to test her prank. To her horror, she blows and blows, but cannot start the hot water bottle expanding at all! She removes it to pre-inflate it a few times, and regains some confidence as she manages to inflate it. Then, for the moment of truth, she re-installs it in the tuba, and begins to inflate. Once it contacts the inside of the bell, it becomes considerably harder than it was in the open. Her cheeks stretch enormously as she powers through the inflation, stopping several times to rest. Unfortunately, we were not able to capture the final (delayed reaction) explosion on camera, but will give her a chance soon to recreate it.