Let's talk about understanding the "expiration" dates on ostomy flanges and bags. This topic is particularly important for those who rely on these supplies and might find themselves needing to buy extra due to unexpected circumstances, like a playful cat causing damage. Here are some insights and advice to help navigate this situation:

1. Expiration dates on ostomy products are primarily a regulatory requirement. The bags themselves do not degrade over time.

2. For two-piece systems, both the plastic pouch and the rigid snap flange can be used well beyond the expiration date if they have been stored at normal room temperature.

3. The adhesive on separate skin barriers or wafers is the only part that might deteriorate. However, most users find that the adhesive remains effective unless the products have been exposed to extreme conditions, such as excessive heat or freezing.

4. Using unopened products a few months or even several years past the printed expiration date is generally acceptable, provided they have been stored indoors.

5. When buying supplies on eBay, be cautious. Deals can range from genuine sellers with excess supplies to opportunistic resellers. Always check the seller's ratings and product photos.

6. For protecting pouches from cat-related incidents, consider these ideas:
- Place a small pet bed, lap tray, or heated pad beside or over your lap to encourage the cat to settle there instead of directly on the bag.
- Wear a soft leather apron, chainsaw-style protective trousers, or other claw-resistant covers during cuddle times.
- Create or purchase a lightweight "sporran" or flat pouch cover made from soft leather to shield the bag.
- Smooth the cat’s claws more often with a rotary nail file or fit the cat with soft booties.
- Modify a wheelchair arm to hold a cushioned perch, allowing the cat to stay close without sitting on the bag.

These tips should help manage supplies effectively and keep those precious pouches safe from curious cats!