Working closely with the public means that you have to fix a permanent smile on your face, regardless of whether your cat has just died because that's what the customer wants and the customer always comes before the employee. This agonising task at having to look cheerful all day comes at a price which makes people quick to call bull sh*t. Home is where they can be themselves and scream into a pillow if they need to, you just need to be there to for comfort and provide food.