Brussels? Isn’t a town full of old money folks ? So just complain about having to sell your late parent manor or a similar story. Ask them about a typical business plan/ROI while ranting about properties taxes.
Also dress up a little bit. Might be the opportunity to wear that fancy shirt you bought for a job interview last year
A quick search tell me that in Belgium the minimal wage is 2000€ sauce before tax.
So yes one million is above a lifetime of work for many persons, definitely rich
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