Tripping hazard

I was so excited after buying my zebra striped throw rug for the living room. Just a five by seven foot. It looks so beautiful. After having it there for a couple of days my husband complained that he tripped twice by it. At first he couldn't figure it out it wasn't the edge that he tripped on.  We have a glass surface coffee table sitting on top of it. When you turned on the chandelier light about it it cast an awkward shadow through the glass coffee table that if you're not watching carefully it actually makes you tripped. It is actually a depth illusion.