Smiliar thing happend to me few days ago

I' was lucid in dream and for some reason i told DC that i'm dreaming
But he answered kinda calm to it
He simply said no your not
And then i said yes
Then he said once more no
Then i've tried to prove it to him
I've showed him how can i spawn McDonald Food Package in my hands out of nowhere
He pretended there was nothing in my hands and that i didn't spawned anything
Then i've lost most of lucidity due to doubt
I was still doing things like low gravity and flitring with girls so i guess i was like 1% - 3% lucid

It was quite weird