Does Timmies add something that makes it addictive?

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Every so often this converstaion flares up again and as someone who isn't addicted to their (TH) coffee, I can only say I may agree with the creamer theory - which speculates that something is added to the cream that makes you addicted to the Timmies coffee. The other theories are: something is added to the coffee something is added to the cups themselves something is added to the creamer (as mentioned above) What do you think it is?