yesterday - two days ago i suppose - i was helping a friend clean his place out. it was so much worse than what you've posted on the op. so very much worse. the stench was unbelievable, the guy carries it with him wherever he goes, so he has this reputation for smelling like piss. when i actually got down to it it was way, way worse than just piss.
there were flies everywhere, i doubt they'll ever leave, and we only got through half of one room. i slashed my hand on a ragged piece of metal and ducked out to go disinfect it, but i'll be back during the week.
it was all building up for maybe five years without a clean, so it'll be a fairly long term job, but the satisfaction garnered thereby will keep my current manic upswing going for at least a few days longer than it usually would last, then back en enfer.