New Ways to do trap, fix before too late!

Well there is a new way to do traps, I have figured it out with an other friend. If they put a coal basing or a blocking Item on the Tp, that Item gets transported to the locations where TP drop you, BUT if there is a blocking Item in the locations, if you try to put another blocking Item in the TP, It will stay because there is already a blocking Item on the Teleport Location. Look Video:

Thanks, fixed