Long story short a friend drank the contents of 5 vape pens (about 2.5ml total with perhaps 0.5gr of non decarbed winterized oil) and he claimed to have been completely out! of it for 2 days. As in stoned out his mind tripping balls not being able to leave the house. Im perplexed could glycol perhaps work as a carrier to the thc and result in a more efficient absorption perhaps passing through the blood brain barrier? Has anyone come across anything like this?? This guys got a low tolerance i may add but i doubt hed be lying.