Businesses have liability insurance and when you sue a business they turn the lawsuit over to the insurance company who then evaluates the case and will either reach out to you to settle or decide to defend the case either grounds of liability or damages. In your case the damages of lost wages will be easy to show, so the issue is liable. I am not so sure that you can show that the owner was negligent in not having signs up, as it is common knowledge to not overload a drier. Further, even if someone overloads a drier is it forseeable that the door would swing open with such force to cause an injury? Also, if anyone should be liable it could be argued that the person that overloaded the drier and not the owner should be the proper party to sue, as the owner cannot control everything in his shop and be held accountable for every customer's stupidity. Lastly, you cannot use the photos - that is called a subsequent remedial measure putting the signs up after the fact and the public policy only favors persons fixing dangerous conditions. If a subsequent remedial measure were allowed as evidence of negligence than no one would fix anything. However, if he denies that they were his machines or that he was responsible for them, then you can enter the photos to prove responsibility and control. Best of luck you are going to need it, and depending on how much $ is at stake you should consider retaining counsel.
