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OMG! They actually wanted you to pay in cash or credit and not LASSECASH or that ERC-20 HEX scamtoken? Is this going to be your origin story of how you become a supervillain?

You didn't go into any detail about what happened but thinking about this part more:

Today I got so extremely disrespected and treated in a way that inventor of LasseCash Lasse Ehlers should never accept

This seems to indicate they knew you were the "inventor" of LASSECASH token and that for some reason they should have "known better" than to treat you something something that way.

Based on your posts I hypothesize what happened is you told them about your token one too many times and they really weren't interested in buying some of your token. Basically they told you to shut up about LASSECASH? So now you condone "do what ever you want to these people".

Frankly I think you never going back is more reward than a punishment for them. The free market opposite of boycott is buycott. Too bad I don't live in Denmark. That cafe sounds great since the vermin abandoned it.

Image Source: https://www.dingeo.dk/adresse/2400-k%C3%B8benhavn-nv/tagensvej-204/