Catching and neutralizing OgreException

Hi, I'm having problems with handling OgreException. Perhaps I'm trying to do something impossible
I want to catch and discard SEHException which is thrown when loading/decoding of image has failed:

try
{
string path = unpredictableImagePath();
TextureManager.Singleton.Load(path, "General");
}
catch (SEHException ex)
{

if (OgreException.IsThrown)
{
try
{
OgreException.ClearLastException();
File.Delete(path);
}
catch(Exception ex2)
{
}
}

return null;
}


This works and the exception is caught. The problem is that it's caught AGAIN outside the method at the main rendering loop. How to handle such situations?

Any ideas how to deal with it?