I'm thinking about fault tolerance - perhaps you have a dodgy wireless connection and you want to poll a server once a day by calling a webservice. What happens if that one time a day you go to call the service there are communication problems? The following code adds some fault tolerance for a situation like this.
int limit = 5;
int attempts = 0;
start:
attempts++;
try
{
service.SomeMethod();
}
catch (WebException ex)
{
if (attempts < limit) goto start;
throw;
}