I got to thinking that there are leaks and then there are LEAKS. So I developed a staging guide. (Anyone else think I might have too much time on my hands?)
Stage 0: Output is pancaking but you catch it before it compromises the device seal
Stage 1: Leak is contained under the flange. You catch it before the skin becomes irritated.
Stage 2: Leak is contained under flange extender. The skin is irritated and needs treatment.
Stage 3: Leak has compromised the seal and is making a mess. The mess is well contained.
Stage 4: Leak has compromised the seal and is making a mess. Stoma is erupting like a volcano so that all you can do is try to contain the mess. Once it stops you start to prep a new appliance only to have a second eruption. You spend an hour changing the appliance and cleaning up.