Generally speaking I account for it, so yes. If someone comes with a problem they've not been able or need to solve and I basically know what tools I can use th

Generally speaking I account for it, so yes. If someone comes with a problem they've not been able or need to solve and I basically know what tools I can use that can solve it, but I've not spent the time to learn how to use them for this particular problem, yeah, they're going to have to pay for that. For example, they want a chart on their web site using chart.js but don't know how to get and parse their data and know I can do that with Perl and some regex work. I'm not a pro at that but I know I can generally find out what I need to know to make it work for the task in hand. I will certainly never use that regex again. They will probably use it for a very long time, or save a ton of time using it once. So, yes, they would have to pay me to learn what I need to know to complete that task.