On April 20, I purchased a bus ticket for my sister to travel from Battle Creek, Michigan to Southfield, Michigan. First of all, I can not understand why Greyhound charges an $18 guest fee to the person paying for the ticket. What difference does this make! I was simply paying for someone's ticket, which happens all the time(e.g meals, airline tickets, clothes etc.) This is a big rip off, and apparently something Greyhound feels that they can get away with!!! In addition to paying extra money for no known reason, my sister ended up sitting on the bus stairs for the entire three hours or so ride from Southfield to Battle Creek. The bus was extremely overcrowded, which I know Greyhound had to know when they booked the tickets. Although passengers were told they could wait on the next bus, who would want to take a chance on the same thing happening! I think Greyhound does this because the typical passenger is a minority with limited or not income! So in essence, I feel the company discriminates against poor, minorities!!! Greyhound, please explain to me the purpose of the $18 guest fee! And, why do you overbook the buses? It's not like YOU don't know how many seats are available on the bus!!