Am I crazy???? Do you believe in ghosts??

Good Friday a few weeks back, I visited a friend that lives in an apartment building. I had the urge to smoke around 3AM so I went on the balcony to smoke. Then an incredibly pale man wearing all black emerged walking, I could stare but he didn't seem to see me. He was wearing black leather jacket and black pants, but he some how didn't seem human to me. Am I crazy???