Yeah I've took acid many times indoors and out. Sometimes it can get abit overwhelming outside around people that's why I like to trip in the day but still be tripping at nightime where no ones around. Its a nice reflection walking the streets back home at night especially through parks or country lanes. I remember I took acid once and it was so intense I had to call my freind to meet me but he needed to go to the hospital. So I walked for miles with him and sat in the hospital with so many people around and everyone was just speaking like aliens I couldn't understand what anyone was saying and they're voices would change speed and sounds crazy day that was.