How to buy a house from a drunk seller?

[Stephen Barton]

I had the pleasure this past Friday of checking out another fine property where the seller showed up not only late, but a little "drunk." Like not just tipsy but stumbling drunk. Now I know what some of the seasoned BPer's will tell me. "You cannot legally enter into a contract unless both parties are of 'sound mind' or there could be consequences. So I know this and I get it. The seller could spend all of the money from the sale and try to sue me or something. My question is: What technique could I use to ensure that she is sober enough to buy her house? It is not exactly a home run of a deal but it is a "base-hit" and that is enough for me to NOT give up. Surely, some of my fellow BP members have encountered this before. I welcome any and all advice that you have! Thanks!