A few days ago.. I placed a spike on a pubpad, to troll people... and then I had the idea to put a spike on my townstone, so people would get sent to root. Then later I left the town... with the spikes still there... and the only way I could get into town, was by making my game extremely laggy, and quickly picking up a spike, in which there is around a 1 millisecond window of time to do so... right between dying on spiked pubpad, and dying on townstone spike.
Where I am going with this.. is.. spikes should not be allowed to be placed in the same space as a townstone.
This just prevents morons (like myself) from removing access to a town.