I think it is rather uncouth to be spitting out prawn tails, prawn legs and shells. Plus I hate getting my hands oily as I need to handle camera equipment and the phone. That could be just me.
I asked a friendly local for food recommendations. He suggested the Chinese Tom Yum stall down the road and I went there right away. Since the shop was quite busy, service was understandably slow. So I cleaned my lenses and a lady finally came to take my order.