I remember it well...
We were in the basement because there was a tornado warning, one had touched down less than a mile from our house. I was 12, my sister 14,. My dad made us get under the work bench in case the house was hit. There were 5 of us, so I ended up laying across everyones legs to fit under. So for about 20 minutes, I had my sisters feet right in front of me and she couldn't move because ther was no room. I breifly tickled her on and off with mild complaints. Then my dad went outside to see if all was clear, and told is to stay put. When he left, I REALLY laid into her. I tickled her feet like crazy with no let up for about 10 minuets. She was hysterical by the time my dad got back. And I was in heaven...