Littlewoods Casino Question

[DuderinoAB]

This is maybe a bit off topic, but my curiousity gets the best of me. How does one tilt when playing blackjack? I really don't get that. Of course, I really don't consider myself a gamboooooler. I only play when I have the advantage...i.e. bonus whoring and some poker. I can see tilt in poker, but I don't understand it here. You have no control over the outcome. All you can do is play optimally which is always the exact same play. Even if you go on tilt, wouldn't you still play optimally? I guess I just can't see ever giving the house a bigger advantage. Then again, I have very little gamble in me.