Scammer in the middle of the night

A scammer or fraudster called me at 5:46 AM... At such a time, people are asleep. He called and said: Today we have dollars to sell in the morning, and I will sell them to you at a reasonable price, lower than their real value. You just need to send me 1500 as a guarantee... As soon as I finished, I told him, "We'll give you 1500 but we'll take your sister as a guarantee✊😆" Then he got angry and hung up.