Yes I always try to package them as safe as I can the only person I have really had a problem with was when a person said they did not get anything and later on said we'll I got a package and I was left with no credits or item.
http://www.listia.com/rules#sh "You cannot state that you are not responsible for safe arrival of the item or ensuring that items are delivered as described. For example, you cannot state "I am not responsible for this item once I ship it out". It is the responsibility of the seller to ensure the listed item gets to the winner.
The seller is fully responsible for securely packaging and shipping the item to ensure against damage or loss from normal shipping practices."