She added: "We were frozen in bed at night and I could remember lying there under a measly blanket cold as hell, thinking I'd have lumps under my arms like the bubonic plague, so that was grim."The star also revealed to the podcast hosts that she had made a pact with her son in case he ended up disliking his time away from home.She recalled: "But I made a pact with him, I said, 'Look, if you hate it just write to me and say 'I hate it' and I'll come and sweep you away.
It doesn't matter a jot'."However, the award winning actress went on to reveal that she suspected the headmaster of intercepting her son's letters and never knew the extent of his unhappiness before it was too late to act on it.The star explained: "Anyway he wrote me letters.
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