I learnt the hard way that moving my light/hood requires both sides of the pole that it hangs from to be grasped before it is moved. Pushing from one side alone is really asking for some serious trouble. I also learnt from that experience that the hassle of moving the plants out of the tent is nothing compared to the hassle of moving the light/hood off of big lush plants 5 weeks into veg after it has fallen on them from a couple of feet above.
That was such a facepalm moment. I wasn't concentrating properly on what I was doing, and was far too stoned. Pushed one side and it just titled the pole, causing the other side to fall off the tent frame it sits on. The entire air cooled hood with the light on within it dropped onto the canopy of my plants that I was ready to flip to flowering. In fact thinking back now as I tell the story I think my reason for moving the light was because I'd just changed from MH to HPS for flowering.
I walked away, in slight shock. But came back quickly, wanting to survey the damage and rescue what I could. I ended up with the hood resting on my legs, with the 600W HPS on inside, as I tried to sort out the pole and lift the hood all in one motion, whilst trying to stop the glass - which miraculously had not broken - from falling out of the already loose fitting. I remember sitting myself back down several times having exerted myself massively for several minutes, after failing to get the light back up. The entire time I was trying to not look at or acknowledge the plant carnage that was underneath my field of vision.
I ended up managing to move the hood onto a mattress, and switch the light off eventually. I think I was very lucky tbh. Five of the seven plants were very aggressively topped, with several side branches unceremoniously ripped off. I did some surgery however and they all ended up growing out ok. Did put the grow back by about 4 weeks though, and made me very cautious every time I move the light or change the bulb (something I always do now having moved the plants first and put a mattress on the floor of the tent - as grateful as I was for their sacrifice, I would rather save the hood glass with a mattress than cannabis plants lol).