Corrected entry: The Tropicana's "future stealing" scam seems to depend on Lorne's abilities too much to be as elaborate as depicted. The operation and black market in futures would have to have been in place well before he got there, so how were they doing it before Lorne showed up? Randomly taking destinies from people in the casino and just HOPING they were worthwhile? If so, what would they do with the people whose destinies they'd stolen? Let them play the slots until they die and then somehow dispose of the bodies or turn them loose in the streets of Vegas and draw the mortal world's attention to themselves?
Corrected entry: When Angel, Fred, and Gunn are trying to find where Lorne's performing, they come across his headliner ad at the Tropicana, which states "17th Straight Week." At the end of the last season Lorne was just leaving for Vegas, and the previous episodes have established that Angel and Cordelia have been missing for three months. Assuming Lorne started performing the week he arrived in Vegas, his show should be in its 14th straight week.
Corrected entry: In the episodes 'Shiny Happy People' and 'The Magic Bullet', Fred and Angel are infected with Jasmine's blood for a while before her spell breaks; they only snap out of it when they look at her and see her true face. Gunn, Wesley and Lorne, however, only have to be touched with the blood and they snap out of it immediately without seeing her face.
Corrected entry: In the final episode of season 4, 'Home,' Angel tracks meets is reasoning with Connor in a clothing store. It is noticeable that there are large windows in the shop which are exposing Angel to the deadly mid-afternoon rays. Angel can only walk around in daylight in Wolfram and Hart because of their special windows. So how come he isn't bursting into flames in the clothing store?