Hot tent

Walking around the site in ’84, I came across a young dude sat cross legged outside his one man tent shouting “Hot tents for sale! only £1!” He also had a crude cardboard sign, scrawled in black felt tip, taped to the tent, advertising HOT TENT £1.
wtf? I thought to myself?
‘What’s a hot tent mate?’ I asked.
‘Have you got a pound?’ he replied.
Upon receipt of the coin he encouraged me to come into the tent and zipped it up.
He unravelled a chillum and began packing it with a mixture of grass and hash.
“Basically” he said “I puff on the chillum, the tent fills up with smoke and you unzip it when you’ve had enough”.
With that, he began chugging away, the smoke quickly filling the tiny tent. An instant fog engulfed my vision. Breathing it in and out, in and out with every breath, it was intense. My eyes started to burn, I couldn’t see shit? let alone the zip! but I found it.
The smoke went first and I followed after. Coughing and spluttering, crawling on my hands and knees into the fresh air of freedom.
“Thanks buddy” I croaked.
Pure innovation.
LOL