College Looner Girl gets Naughty in the Library

Miyu is studying for her test in her university library. the library is a bit full of students because the exams are coming up. but that doesn't stop miyu from trying to sneak in a bit of balloon fun to break the boredom of studying for her exam. in her bag are several tuftex 11" balloons. they are just the right size to sneak in a public place like this. she first gets them out and starts blowing up the first balloon.. she blows and blows until it pops. it was a loud bang! can she blow up more balloons and sit on them next? how many balloons can she blow to pop and sit to pop before she gets caught?