Mike is correct bugs have a flow through digestive system so they definitely have an anal opening.
Me: Decided to go for a bike ride to try out the new Garmin 500. Cruising along at about ten miles in thinking that everything was going well. Pop! Woooosssshhhhh... Okay, it's the rear tube but not a really big deal. Pull out the underseat bag and open it up. Chain tool, tire levers, tube ... No tube. OK. Well I'll use my phone to call for a ride. Pull out the phone and it is in a perpetual booting loop. Pull the battery, wait one minute, no good. Pull the battery, start walking to the last road I crossed. 10 minutes later I pop the battery back in and the phone finally boots up. Not an auspicious return to cycling.