Hey I just wrote this.

call-me-maybe.js

// this is crazy
Function.prototype.callMeMaybe = function(ctx) {
    var args = Array.prototype.slice.call(arguments,1);
    if (Math.random() > .5) {
        return this.apply(ctx, args);
    }
};

function square(n) {
    return n * n;
}

// so here's my number
square.callMeMaybe(null, 2);

🚢 it!

you should reduce the chance if it calling the more times callMeMaybe is called