Never feared too much, the streetwise bit kicks in when things are iffy and you keep yourself to yourself, but recall a few from years back.
Tottenham first time round on the walk back to the train, Frickley away once, FA Cup I think, miner tw&ts, Telford away FA cup, 86? "interesting walk to the station, and very silent one stop ride from Wellington to Telford proper,Some bits of Scarborough in the 77 Trophy semi epic,Runcorn away Trophy semi after mayhem on Stamford Park at the home leg. Also agree Port Vale and Hereford home unsegregated first time we played a conference fixture.Wycombe away Trophy semi too.
Nearly all these are 70's 80's, glad to say reasonably frequent then for bigger games but rarer now.
There was often minor trouble in those days esp Macc over Christmas, Vics once or twice and Southport. Some away trips too, like Kettering and Worcester once.
I'm sure the Gazelle has things to add here?