buses - all long distance buses, needing to use the bathroom while on the bus, city buses at night, not having the right coins for the bus

accommodation - trying to find a B&B in the dark

eating - trying to find a decent family restaurant in Glasgow

trains - not meeting timetabled connections, platform 9 at Perth railway station, Virgin trains smell of wee, turning up to pick up a pre-booked ticket with a different credit card than the one I booked it with, loo doors that don't lock, turning up at Leuchars RS to find a queue 20 people deep and someone at the front asking a series of long questions to the ticket seller then jumping ticketless onto a GNER train only to be charged a medium-sized mortgage as I didn't have a ticket before I got on the train; trying to buy a train ticket at Edinburgh Waverley, Glasgow Central or Glasgow Queen Street stations; trying to get a train from Aberdeen at night

air - going to Glasgow Airport only to find I should have gone to Glasgow Prestwick Airport 40 miles away, travelling right past Edinburgh Airport into Edinburgh because there isn't a railway station at the airport

ferries - cancelled sailings, rough voyages

money - forgetting to change Scottish money to English before leaving the UK (Scottish banknotes are not valid tender outside the UK.)

touristing - trying to visit anything between October and March as most tourist sites - e.g. castles - are closed during the winter, standing freezing to death in February anywhere in the east of Scotland, the freezing fog (haar) that comes in on the east coast from nowhere on a beautiful, hot sunny day

driving - trying to park in a city, trying to park in St Andrews, getting booked for not being able to find a ticket vendor in St Andrews, getting stuck behind a 15mph aluminium lorry travelling in the west highlands, having to get out of the car to see where the road goes next in the NW highlands, near death experiences on the road to/from Oban/Inverness/The Borders, stuck in traffic jams caused by the emergency services attending a minor accident, breaking down in the highlands and trying to explain to the breakdown services where I am, driving on the A9 north of Inverness (it's not a road, more a series of accident opportunities, and Berriedale Braes is a bit of the road that simply goes up and down a cliff-face above the sea!)