Joe wrote:
My wife put 2 cartons of milk on the same shelf and that proved to be
too much weight for it and both back corners snapped off in almost
identical pieces. I've never had success gluing two pieces of plastic
together to support weight but I'd like to try something different and
see if it works. I'm going to take my Dremel and drill about 6 holes
in each side of the pieces to be joined. Then I'm going to insert
pieces of a paper clip into each hole to act as reinforcement for the
glue to adhere to much in the same way rebar works in cement. Has
anyone had any success with this? I'm thinking if nothing else it will
increase the surface area of the connection. Any hints on making it
work better? I'm going to use Gorilla Glue to join the pieces because
it will expand into the holes

Aren't most plastic pieces inside refrigerators made of PVC? If so,
you want to use solvent, not glue, to fix them. Acetone or laquer
thinner will work, but hobby shops and electronics supplies. have
stuff made especially for gluing plastic models and TV cabinets.