When someone says you have a "blown" shock or strut they're saying that your shock/strut seals have leaked the internal fluid out that smooths the movement of the tires over bumps. This can cause the tire to not maintain contact with the road. In an emergency situation this can cause excess rolling to the side and increased stopping distance. Basically if you have to swerve you could potentially roll over or if you have to slam on the brakes you may not stop as soon as you would like.
This is more important than you think. Give us a call and let us take care of you.