Why do some guys ask to get picked up from around the corner of their home and never from home?

Everytime I picked up my friends with benefits, he use to always ask me to pick him up from around the corner of his house only. He only lived with 3 other males in the house so I don't get why he would try to be so sly.
Why do some guys ask to get picked up from around the corner of their home and never from home?
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