Some of the gripes provided were the reason we have discussed starting a paid service for instructing, Have a scheduled free evening during the week but also offer another night for a fee for people that perhaps are taking learning more seriously and want more exclusive instruction, at least for the one night you would have people who were really wanting to learn. Or you could charge a pre class fee , and if they do not show up as scheduled you keep the fee, if they do show up you refund it. With the price of ARFS as low as they are and package deals we will always get the want to do it now people, they see the cool things the planes can do and they want to do it now, not after they have learned to fly straight and level or land. These type will usually not stay in the hobby . I guess we just have to take the good with the bad. Its a good feeling when you do see someone you instructed solo and go on to build (if they haven't) or to more complex models.