Electrified grilles are only partially implemented
Electrified grilles do not trigger when bumped - electrocution can only occur if you click on the tile, which is not ideal.
One good solution would be to create a new interface, say, IBumpable that objects and tiles could implement, to handle getting bumped into. This might also be apt to simplify pushpull behaviour.
Also related: #6415, which makes it considerably harder to set up electrified grilles.
Maps also do not currently exploit electrifiable grilles, which is a significant map design element in /tg/ (though this probably shouldn't be done until powering grilles is simpler, via solving #6415).
IBumpable for objects exists I made it for the supermatter, so would need integrating with the interactable tiles.