I've had this happen quite a few times and it is fairly annoying. When I use it one of two things usually happen. A. It is nearly instantly penetrated and I've basically wasted my super due to another class having theirs ready. or B. Hordes of the enemy run into my bubble and I proceed to bash their faces in with my fist. My record as of today is brutally murdering 4 players with my bare hands before a warlock came along with his purple wave of death... It truly appalls me that people have yet to learn you DO NOT enter our bubble with us inside for THEY SHALL NOT LIVE! My bigger annoyance is the fact that Force Barrier has a horrible tendency to take is sweet time activating.