Not a great deal, the work is highly specialised and requires a few skills and qualifications that very few people I know have. Without going into much detail,

Not a great deal, the work is highly specialised and requires a few skills and qualifications that very few people I know have. Without going into much detail, putting somebody through the required processes costs about $10k but also requires them to be decently skilled to begin with. I'll be deferring work if I can, but not at the cost of losing clients - doing so would likely result in me losing them forever which will cost a huge amount more than not having a social life for the next six months. For what it's worth, I'm not someone who requires a great deal of pleasure time. I enjoy my job - it's problem solving, with constantly unique problems, even when I'm not working I'm generally spending time problem solving either by coding or playing simple strategy games with massive game trees, so 80-100 hours / week coding isn't all that far out of the ordinary compared to a regular week for me anyway.