As humans, we like to try new things. Sometimes, we develop new hobbies this way; other times, we realize that a certain activity just isn't meant for us.
Life's a learning experience. Some lessons we must learn the hard way, but the important thing is that we learn them. Taking the advice of others will help.
In the world of retail, you come across a lot of interesting things. Expect to deal with bad customers, strange demands, and a whole lot of desperate scams.