I have never seen aliens but one time I went home, it was nightime around april '10 and this room has a porch facing south and I open my eyes at just the right time and a green gas flare (best way I can describe it) flared up and then poof gone the next second. Another time back in like June of '06 me and some friends were blazin all over town and we went to this park by this time it was night and we were blazed as fuck and we're walking out of the park and talking about some high shit and I'm like do you guys see that? A white ghastly figure starts moving just outside this outdoor basketball court and I look over at my buddies and there in a frozen shocked state and they simply just say yeah all whispery and truly scared as we start taking off. I told another bud smokin friend about it like 3 or 4 years later and he's like dude no way I was walking alone by the same place and saw a ghost then told me some story about a young child who was abused by his/her parents or something. I have more intense and true events that I saw involving apparitions but those stay with me and only the closest of friends.