On many trips especially novice and intermediate ones, we often encounter paddlers that failed to roll and end up swimming. If they let gos of their gear, we call this a yard sale :-) As always, tend to the swimmer first before they get into further troubles. If you have multiple paddlers, split up and do whatever is necessary - swimmer first, then boat, then paddle. Sometimes we will get multiple swimmers. This may be due to a tandem boat like a canoe or someone following to close, very common these days. The priorities don't change, get people out of harms way quickly. We will definitely practice these skills in a scenario or two when you least expect it.