If the tile was grouted around this receptacle, the grouter could have been shocked if the wet tile grout contacted the terminals and wiring.
I guess this did not happen, but I was not there and it could have.
Now these types of receptacles can fail, and if so, most electricians are not going to dismantle tile walls, or would perhaps damage the wall and tell the seller he/she will have to have another contractor repair the wall. If there are no matching tiles what do you do once the original ones are removed?
This is not the most common thing found at a home inspection, but testing this receptacle is mandatory for an inspector, and I would write this up in the report as a deficiency as the receptacle cannot be replaced without damage to wall tiles, and further repairs will be needed. All for a $15 receptacle.
This will not be repaired for twice or even three times that amount.
Ray Wilson is a Home Inspector, covering all of Long Island (Nassau and Suffolk), the 5 boroughs of NYC and now upstate NY. For any home inspection related questions he can be reached at Meticulous Home Inspection Corporation. He can be reached at 631-902-6761.