How to politely refuse a Tuk Tuk ride in Phuket

During one of those long random walks along Kata Beach in Phuket, I fell in love with a T-shirt that says:

"I f*cking do not want a Thai massage,

tailor a suit

or ride a Tuk tuk,

so leave me alone!"

I bought it but regreted doing so also immediately because I don't think I'll ever have the guts to wear it.