Little bottles of parafin (safe to use) reckon that the biggest risk is aspiration...
Dunno if I call bull on the vid or not, the part way down line on the level indicator could be air level on the funny shaped bottle...majorly stupid.
If he followed it up with a few cups of epsom salts and water, he could have been doing a DIY bile duct flush (google Epsom salts and olive oil).
Given the alleged propesnity to eat toilet paper, I'd call prank on the oil.
Toilet paper is used to stop drips and extraneous airflows when welding boiler tubes, as it is designed to break down in water, and not form clumps.
Take a few toilet tissues, moisten them and try to wipe a mirror, versus a couple of facial tissues.