About to tile dining room floor took laminate up and forgot the whole bottom floor of our house has these horrid brown tiles stuck down with black type adhesive so i start ripping them up cause some were broken and really brittle bf said dont bother tile over them cause the black stuff is quite hard to get off! and they probably have asbestos (house built in 70s) I have read online some people say its ok to tile on them some say no way I am stuck hope someone can help😁😁😁😁