Quick grammar session:
You only need the apostrophe when something belongs to someone (or something), like Wilkie's shoes, or the dog's dinner, or when you leave out some letters and abbreviate, like Wilkie's (Wilkie is) coming round for tea or haven't (have not), didn't (did not), etc.
You don't need it when you're talking about plurals (as in shoes, sweets, threads), or on words like runs and finishes.
I shooda bin a teecha 