When I was in kindergarten, an older girl began tickling me at recess as we sat on the grass. I thrashed wildly (tho it felt great) and the back of my head slammed into a big blob of concrete that must've been dumped off from building the tennis courts.
A bit of blood, nothing serious, but quite painful & disconcerting for both of us, and needless to say, the end of the tickling. Unfortunately, this was to be a harbringer of how my interactions (such as they were) with females were to be going forward.
Obviously, there were many other factors, but I've often wondered if a couple feet in either direction would've made a difference. Something to be said for getting off on the right foot(!), and timing is often everything. Nobody to blame but myself, really, don't get me wrong.
Whatta ya do? Some guys have friends with hot sisters (or sisters with hot friends) who have serious tickling fetishes, others....