I am with you my friend--and also offer this anecdotal evidence in support:
Friday the 13th is considered a lucky day in my family, ever since an ill-fated date wherein my father took my mother out to a restaurant he could not afford, wanting to impress her, and their bill was switched with a group of businessmen who had come in for drinks. The businessmen, Americans from out of town, were confused by the exchange rate and Toronto's expense, and so simply paid the bill--although not without considerable grumbling--leaving my father to pay for their drinks in exchange.