Worsened conditions is quite vague, I went down the line that it covered the attitudes of customers, not necessarily translated it mean physical (or extreme verbal) abuse. The likelihood of customers that [would] make derogatory comments post encounter goes up. Not necessarily the % or ratio but the actual number. For example: pre legalization a prostitute saw 10 clients a day, 10%, one, of them would say "that wasn't worth it" to the prostitute after services were rendered. Post legalization that prostitute might have 30 clients a day, 10%, three, say exhibit the same behavior. While the ratio is the same the hard number of negative feedback is 3 times greater. And psychologically negative feedback has much more weight that positive feedback which can weigh on an person's self-confidence and feeling of self-worth.