It's not unusual to come across herds of goats on the roads in Samos. We came across this herd on the main road from Karlovassi to our apartments in AgiosDimitrios, Limonaki. It is advisable to slow down as you pass by them
Be warned! The pedestrianised areas around the harbour at Pythagorio are designed to make you fall over without even trying - this may be by design to provide entertainment for the 'people watchers' at the bars & restaurants that line the front!
The large uneven flagstones are now very worn & therefore shiny & very slippery (I imagine they are even worse when wet!) They do look nice though! So, wear flat shoes if you want to save your dignity & your knees!
Tricky currents along the straits separating Samos from Turkey's Dilek peninsula (SE part of Samos). They may carry a sea mattress or small vessel (canoe, pleasure boat etc.) away from the beach and into the boat paths. Make sure you don't venture too far especially if you're not a swimming / sailing champion!
While the roads in Samos are well-paved, they are also very narrow and quite twisty in parts. Many times you have a mountain on one side of the road and a steep fall-off on the other. So take care when passing and watch out for the crazy cab drivers! I advise against using a moped for travelling long distances on the island...