What? The garage is for cars?

So, we have lived here for almost 7 years. Not once has our garage been empty, not even before we moved in. That is one of the issues that arise from buying a house from relatives and being too nice... "Sure you can leave that here till you figure out what you want to do with it." In addition to the travel trailer that was in our side yard for almost five years, the garage has held many old LARGE Craftsman woodworking tools. Oh, and a little motorcycle. (The larger motorcycle and the Little Rascal" type scooter were taken out within the first few years.) We have not charged rent for these items, and we have been very generous over the past few years. (Oh, and I just remembered, the shed in the back is filled with their stuff as well.) Each time we attempt to clean the garage or organize the shed so that we can put our items in we ask the items owners if they would like us to sell the items or just give them away to someone who would use them. We have also told them we are tired of the items being in OUR house! This past weekend while we were cleaning our garage we called again, to let them know that the tools were going to be moved outside and covered with a tarp. They had the nerve to tell us they did not want them outside because they might rust. Now, had I been on the phone instead of my husband, I would like to hope that I would have told them that if they did not want them outside they could come pick them up and take them to their garage! And if they want me to keep them here they can start by paying me storage fees, along with all they backpay, $25 a month for the past 7 years. So once I receive the check for $2100 I will gladly drag your items back in to my garage. If you still want use of the shed that will be an additional $2100 in backpay plus $25 a month. Maybe we should just bring all the things we would like to store in that space over to their house and they can store it in their garage!