I posted this on the Macgregor site but thought you might get a kick out of it also.She has sailed just about as much as I have which isn't alot but I must have been paying attention more.We have a Macgregor 25 and were out in about 10 knot winds with the 150 genoa up and it was all going fine for about the first hour. Then I decided to go below to try to put up the pop top and I started to hear alot of screaming from my wife and sister inlaw and then the boat started to go over. Stuff started falling everywhere, the radio off of the table, the cooler on its side and everything else shifting to one side of the boat.I was finnaly able to get my foot out of the long hole on the port side which had become wedged between the insert and the lip thats supposed to hold the insert and put the top back down. After clearing out a path to get out of the cabin and getting back up into the cockpit the boat started to go over again. She's asking me what to do and I tell her to just let go of the tiller. After getting ahold of the tiller myself and getting underway again we start to talk about what happened. What I guess happened is that the winds picked up gradually and instead of turning into the wind she pulled the tiller and started to go across the wind and it was on from there. The rail of the boat ended up about 6" under water. My sister inlaw said that she felt like she was standing with her feet on the the opposite cockpit wall and her back against the lifeline and I would imagine that was probably not too far off. We had been heeling a bit earlier in the day but nowhere near that far.A little while later I ended up taking down the genoa and putting up the jib and didn't have any problems after that.I guess I have one question, Was I wrong to tell her to let go of the tiller?Were both relatively new to sailing and I'm a much more interested in learning more then her but want her to be able to sail in case I were to fall over or something. I'm sure we will get there eventually and at least we're able to laugh about this and not be afraid to go out again. I guess it's going to take some time for both of us to know what is the best thing to do in certain conditions.Thanks, and I had a great time regardless,Lee