The plastic inside the cartridges was all broken up. 

If you installed something like a shower curtain rod and it pulled out - reattach more securely.Also if corners are getting chipped and knocked about, I would consider adding corner guards (plastic or wood) as an upgrade for my tenant. 

For example, we've granted two here recently; one for a microbrewery/restaurant that is dumping $1.3mil into an old building on Main St. and the other was for the expansion of a medical plastics welding business.  

We replaced the floors, updated the kitchen, replace plastic bathtubs with tile and frameless glass doors in all the bathrooms, and closed the screened porch to add a master bedroom W/M bathroom and closet.Added a dwelling under the new master bedroom kitchen and new deckThe townhouse had an original 1323 sqft with the addition came to a total of 2000 sqft.

Carpal tunnel surgery on both wrists left me out of work short-term, and depleted most of said capital.

Reminds me of someone who is considering the purchase of an off-the-shelf, do-it-yourself brain surgery kit via a GoToMeeting video.

I would have expected an OSB/plywood sheathing with plastic house-wrap or felt paper depending on the age. 

It's a very well known medical center and one of the top cardiovascular surgery centers in the world.

While the numbers affixed to the box are permanent I wanted to find if anyone has found a material that adheres to plastic that can be removed after the tenants move out.These tenants put their last name on the outside of the metal box that I replaced that was broken.

You can learn how to perform open heart surgery on there (Although I wouldn't recommend it:-)If you're not into that, do what J Scott said.