u/Every-Noise-7107

I was finishing my base when, out of nowhere, an invisible player wearing a full diamond set suddenly appeared at my base. There were no broken blocks or signs of anyone entering — he just appeared out of nowhere. At first, I thought it was one of my friends pranking me. I had a milk bucket on me, so I dropped it to him. He gave me a Totem of Undying and then dropped the milk bucket back to me. After that, he splashed another invisibility potion on himself and disappeared. About two hours later, the same player appeared again right in front of me. This time, he dropped me a Piglin Head and disappeared once more. He never raided my base or stole anything, which makes the whole thing even weirder. Does this sound like some kind of admin prank, or could it be someone hacking?