How rude is it for someone to randomly phone you during work hours but when you ask for them to clarify something they say that they're working?

I am trying online dating apps because where I live drug abuse, alcholism, etc. is very rampant and not being local it's not like I'm interested in men who are abusers, etc.

Anyway

I gave one guy after chatting for a bit my number. He randomly phones me during work hours not once but twice. Doesn't text first, just phones. Both times.

Anyway I text, confirm who he is and say sorry you know I can't answer the phone I'm in the middle of the clinic. He asks if I'm alright & I respond sure I am, I manage the clinic.

He just goes hmmm to this to which I send two question marks (?) right after. Not even a minute after his text. No response.

No 45 minutes later he responses to the question marks and says "sorry I'm working, I'll call you later".

The comicality is before I said I manage the clinic - when he thought I was just a patient - he wrote "call me after".

...

I've blocked the guy. Obviously he's an imbecile.

But his behavior struck me as incredibly rude & ignorant.

How rude is it for someone to randomly phone you during work hours but when you ask for them to clarify something they say that they're working?
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