How would you draft a negligence Complaint and then an Answer using contributory negligence as defense for the following scenario:

It's the annual office picnic, and Steve has arrived late. He is supposed to be running one of the large grills. He rushes over to the grill and spills in an immense amount of lighter fluid, thinking that it will get the grill hot in a short period of time. He doesn't realize that the can of lighter fluid has several leaks and when he lights the grill, fire shoots from the grill and catches Steve's clothing on fire, causing severe burns.