If you are one of those rude people who thinks they own the space behind them so that you fully recline your seat without regard for the comfort and safety of the guy behind you, then you may very well end up in Hell. I knew someone who got a blood clot from sitting in a cramped airline seat and got a blood clot that killed him.
If you are going to recline your seat fully, please be courteous enough to ask the person in whose lap you are planning on resting whether it would be OK if you reclined. Most likely even a claustrophobe like me would not object in that case. What I do object to is those people who do it without any regard for the person behind them.
Personally, I have never reclined more than a couple of inches unless the seat behind me was vacant.
Do unto others.....
“golden rule” has been replaced with “i do what i want, m-effer” for many people nowadays.