All Cretans are Liars

Jim and Dean are back in the country and have been swiftly followed by this postcard, which sadly is too phallic to show the picture of. Here, though is the text:

Dear Neel,
Deen and I are in Creet. People from Creet are called Creetuns, not Cretins. This is importunt. Deen took me to a place called the Labi-Rinth and we got seperated, but a thred from my T-shurt had got cort on the entrance and I followed it back.
Deen was very suprised to see me!
Everywun talks about the Myno-tour, but Deen said it was at least half bull.
Wether continues fine.
Jim