During the 2022 University of Twente Alumniday, Diana gave a seminar about the history of needles and injections, needle-free injections and the remaining issues with current needle-free injection systems, which our BuBbleGun system aspires to resolve. There was a broad audience of UT Alumni and there was a extensive discussion afterwards. Additionally, the demonstration experiment of a needle-free injector was a succes. It clearly showed how some currently available needle-free systems are actually more scary compared to needles, a problem our Team strives to overcome.