I have never shorted a stock in my 30+ years of trading apart from buying some put options on TLS when it hit $5.80 a few years ago and I did very nicely out of that.
I do buy put index options on the asx200 now and again when it gets seriously over valued.
APT now has a market cap bigger than WPL + STO combined and is now valued at 60% of ANZ and higher than TLS.
I think the market has got way ahead of itself here so I have just started buying put options on the stock.