Sharks: Why Barb's Place is Hilarious

I started working at Barb's Place Fish and Chips two summers ago and I will never, ever forget my first day there. I ended up applying and interviewing for the job twice for various reasons, and truly thought that I would never get the job. However, to my surprise, I received a call one day from the manager asking me if I'd like to come in to work the next day at 3pm. He had never told me how much I was going to make, nor did he tell me how long this shift would be (I didn't get home until midnight), but I was so desperate for a job that I agreed anyway.

So I go there the next day and it is pouring down rain and the wind coming off of James Bay was freezing. The manager took me around the shop and showed me all of the signed and told me how everything worked before handing me the required paperwork. I filled out the paperwork (which took waaaay too long) and handed it to the manager. While I was talking to the  manager, the assistant manager came in and started talking to the cook's supervisor. The manager started smirking uncontrollably as he was talking to me and it started to freak me out.
What the hell is this guy smirking about? Is there some strange initiation ritual that I will be going through? Will they pour batter on me? Will they make me wash the dirtiest dishes, or worse yet the floor drain? I thought to myself. I tried to control the look of worry on my face until I heard a screech coming from the office area. The manager whips around and starts laughing uncontrollably at the assistant manager who was cowering in fear by the walk-in fridge. I cocked my eyebrow at the cook's supervisor, who then tilted the computer screen towards me.
It was a picture of a shark. The manager made the desktop a picture of a shark knowing that the assistant manager was afraid of them I even found the picture:

I personally find this picture more hilarious than scary, but she (the assistant manager) was hyperventilating and screaming, "GET IT OFF! GET IT OFF!". The manager and cook's supervisor (and maybe me...) were laughing at her for so long. This managed to eat up a good hour and a bit of my shift. The cook's supervisor changed the picture and the assistant manager calmed down enough to get ready for her shift (which entailed training me). I asked her why she was so afraid of sharks while she was telling me how the till worked and all of the short cuts that would make my job faster.
"I've been afraid of sharks ever since I saw The Little Mermaid. You know, the part where Ariel has to run...er, swim, away from the shark!" And she was dead serious.
I smiled at her and said, somewhat sarcastically, "That part was pretty scary!"
"I know right!" She responded before testing me on my ability to take orders.
This is how my work life at Barb's started. This is how the embarrassing stories to get your cheque early. This is how I met some of the weirdest, greatest people ever. These kind of antics makes getting yelled at by customers because their food has taken longer than 5 minutes worth working there.