That's a question I've been pondering over for a while - since I stopped doing the whole professional ticklers thing due to being unable to think of any other victims, to be more specific. I have thought of something he could do though: teaching.
As a self-proclaimed tickling professional, I figure Max could try to make his title a little more than self-proclaimed by demonstrating his prowess and knowledge on the subject in a classroom. xP Every chapter of this will be written in second-person perspective (a first from me) and feature other furry characters whom also claim to be professors, experts, or scientists on the subject of tickling...or common victims to it >=3 (I may need to get permission from the creators of these characters first). All of these cameo characters will serve as a "willing" demonstration tool - the rope and pleading or disgruntled look is just to create atmosphere and the gag is to refrain our subject from disturbing other classrooms, so try to pay them no mind. The story will cover 9 lessons and have a "final exam" when it's done, obviously ending in ambiguity so as to allow the readers to come up with what they do.
What do you guys think? xP This sound like something you'd want to read?