there's something about prawns in HK

Ok.. this sound very trivial or crazy. I'm sure u guys eat de-shelled
prawns right? Generally, we would de-shelled and remove the veins (or
i like to call intestines :p) by cutting slightly on the outer rim of
the prawns and then pull them out. FYI, i find prawns with those stuff
tasty bad.. For some, the cut is also to let the cooked prawns look
like flowers, nicely presented on the plates.. something like this..

But hor.. HK prawns' intestines are inner side (aka where the 'legs' are). I cooked prawns twice and it is the same for both times. Weird right? Does prawns' intestines' location differ from region? Anyway my prawns don't look nice after they r cooked unless i want to double cut aka inner n outer rims. :p

ps: there's something weird about my posting via email.. not working leh. my post after the pic disappear...