Perhapsh itsh the accshent...
Think of Shaun Connery as you say the above ;)
No context pic for this one: it was a pub toilet in Glasgow. I thought I'd leave it to your imagination. Certainly not the worst toilet in Scotland, made famous in Trainspotting, by Irvine Welsh. His books have a huge numer of examples of different accents spelled phonetically.
Pronunciation varies so much between varieties of English. Phonetic spelling, rather than using the phonemic alphabet, is one way to get the accent across in writing.
What does your accent look like when it is written as said?