Excuses to not shower for a week

I believe that showering is important and there is no excuse to skip one. But still if i have to make some excuses to not shower for a whole week, I would chose the one that are at least understandable. I will shut down the water supply for the showers and then would make an excuse that there is no water to shower with. If I have to find one other excuse, I would say that the water is too cold or too hot. Another one would be that I have to go play later in the day and that I will shower when I get back since I will get dirty while playing. All these excuses sound good but I personally dont think that I can live happily without showering for a week.