Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to pick up a pet mouse [title] Grasp your mouse's tail gently to restrain it. [step] To keep your mouse from scurrying away while you try to pick it up, grab the center or base of its tail with your thumb and index finger. Mice tails are quite fragile, so your grip should be just firm enough to keep your pet from scampering off.

Ending1: The mouse will retreat and try to escape if you grasp it too firmly. [title] Bend your hind legs to either side. Ending2: [substeps] This will usually not be needed if you don't intend to pick it up quickly. Only pick your mouse up with it's tail raised. Ending3: [substeps] Place your palm firmly on the tail. Make sure that your thumb is flat so that the mouse's tail doesn't slide off. Ending4: [substeps] Do not, under any circumstance, pick your mouse up by its tail. Doing so will cause your pet lots of discomfort and, in some cases, can lead to major injuries like degloving.

Answer format: ending1/ending2/ending3/ending4