I consider myself fortunate that I have many, near limitless, things related to Corporal Punishment that ring bells.
The one that jumped out at me though when I read the question is the memory of mom saying we'd have to deal with something at bed time.
After my bath, I'd be in bed, in PJs, trying to read a book and listening, watching, for mom in the hall. Sure enough, she'd arrive, come and sit on the side of the bed and review with me what she'd promised would be dealt with at bed time. She'd never be angry. Quiet, firm, no nonsense as she told me how disappointed she was and how sorry she was but I needed a lesson. She'd ask if I knew I needed a lesson, I'd nod and she'd say, “Alright, I'll go and get the spanking brush and be right back,” or, worse, “Alright, I'm going to go and get the strap for you.” I don't know what was worse watching her walk out of my room to go and get a dreaded instrument of correction from her room, or seeing her come back into my room holding it saying. “time to get ready for your spanking Tommy. Please stand up,” or, “Push the covers aside and roll over for the strap now Tommy.”