Does your dog bark at inopportune times?

My dog seems to start barking when I’m in the shower or getting dressed and can’t really go see what she is barking at. This morning I was all lathered up in the shower and she started her really aggressive barking that told me someone with a machete had just broken in. I jumped out of the shower, grabbed my robe and hairbrush for a weapon and creeped into the living room. She was standing in the window barking, so I looked out to find ducks in my front yard. Not a machete carrying thug.
Does your dog seem to wait until you can’t really do anything to start barking their heads off?
Funny naked stories are most appreciated.