When all this became popular and the TV shows were all the rage, in the spirit of I could better I formed a group to investigate the so called paranormal. In all those years I have found only two incidences where I was unable to explain what had happened. In both cases it's something I cannot explain, NOT something unexplainable I am sure. I learnt to debunk many tricks especially with thermal cameras that appear to show one thing but in truth are just clever camera angles. The biggest hole in the entire field is the dependence of unproven technology as proof, evidence, ghost meters, spirit boxes, and things like emf meters for instance used as proof of ghosts, all they do is measure field strength. Orbs is another good laugh .... dust on lens, insects to close for focus etc. I am not saying all of it is rubbish but 99% is.