Being cold.
Hard to believe that we had frost on the inside of the windows back then but we did. As for the worst, I've so many, having spent my early years in a children's home where being kind to kids was not something the house master and matron as they were called back in the 50's had little time for. We slept in dormitories, and one night because a couple of lads were talking we were all hauled from our warm beds and trooped down to the wash room and made to mop the floors. Not sure what on time of the night or morning it was but I must have been about six or seven years old but blimey, it was freezing sneezing.
And one more for the record, being beaten. Outside in the yard one sunny Sunday morning singing my head off alongside my brother only to be dragged into the masters study and caned hard across our legs "because of singing outside of church on the Lord's day". What was all that about? Well the housemaster at the time was a 'Reverend' Hall, or "the mad vicar" as we boys used to call him and one whose dog collar used to stick out from around his neck. A nasty despicable creature of a man to be thrashing two little kids like that.
Pictured below: I'm the little squirt in front. Winstanley House Knutsford c1955 and now the site of an old peoples home of the same name. Just hope they are better treated!