Very dodgy ground all of this bond business. I would seek professional legal advice in this matter, there are many who say that bonding is illegal just as slavery and serfitude are. Then we have contract law which is in many cases geared up for the big players and not for us minnows. The cost of chasing someone for the bond is expensive and time consuming. As for you being liable for court costs etc well you have to be able to pay and they will know!
This is a subject dear to my heart as I may need the advice myself but I intend discussing matters with my HR dept and come to some kind of personal arrangement. I like the company I work for, I just hate the job and IMHO the front seats of an airline is not the place for someone who doesnt want to be there.
Very best of luck but be very carefull - I will be.