The 4-0 defeat v Watford was proper grim, but we've some far more recent examples of that as we've already done worse than that this season with a 5-0 reverse at Rotherham (complete with a hattrick) and lost 4-0 three times last season. Even if you want to limit it to home games there's a 4-0 defeat at home to Millwall two years ago! Wigan also scored 5 in the away game without reply that season. Fortunately one of them was in the wrong net.
There was also a 6-1 at Swindon in the LDV in 2002 and then the 8-1 and 6-2 defeats under Dick Bate.
If that seems unduly negative I've seen us score 5 v Bournemouth, Bolton and QPR, although that may not restore that reputation as Firestorm (I think) pointed out we were relegated each season. Fortunately I also saw that 5-0 v Aldershot and the 6-1 v Oxford:happy:
Oops, this actually says at Roots Hall and I'm mixing in away games. There have also been some 5-2 away wins in more recent years - Northampton, Dagenham and Oldham?