I have my own company, have my own products and also develop products for clients. Maybe this explains the difference. Obviously before any clients use my servi

I have my own company, have my own products and also develop products for clients. Maybe this explains the difference. Obviously before any clients use my services we have some kind of interview / negotiations. Normally I am being asked what kind of stuff I have developed and how did I solve such and such problems. I do not remember ever being asked to pass any tests. I do know that if they ever do I will simply refuse. I have very good decades spanning portfolio along with references from my client companies. If potential client is not interested in checking my real work and would rather switch to some bullshit test we are better off without each other.