<P> Soon after , both Clark 's and Ellen 's parents arrive to spend Christmas , but their bickering quickly begins to annoy the family . Clark , however , maintains a positive attitude , determined to have a `` fun old - fashioned family Christmas . '' He covers the house 's entire exterior with 25,000 twinkle lights , which fail to work at first , as he has accidentally wired them through his garage 's light switch . When they finally come on , they temporarily cause a citywide power shortage and create chaos for Clark 's snobby neighbors , Todd and Margo . While standing on the front lawn admiring the lights , Clark is shocked to see Ellen 's cousin Catherine and her husband Eddie , as they arrive unannounced with their children , Rocky and Ruby Sue , and their Rottweiler dog , Snot . Eddie later admits that they are living in the RV they drove , as he is broke and has been forced to sell his home . Clark offers to buy gifts for Eddie 's kids so they can still enjoy Christmas . </P>
<P> Soon after , both Clark 's and Ellen 's parents arrive to spend Christmas , but their bickering quickly begins to annoy the family . Clark , however , maintains a positive attitude , determined to have a `` fun old - fashioned family Christmas . '' He covers the house 's entire exterior with 25,000 twinkle lights , which fail to work at first , as he has accidentally wired them through his garage 's light switch . When they finally come on , they temporarily cause a citywide power shortage and create chaos for Clark 's snobby neighbors , Todd and Margo . While standing on the front lawn admiring the lights , Clark is shocked to see Ellen 's cousin Catherine and her husband Eddie , as they arrive unannounced with their children , Rocky and Ruby Sue , and their Rottweiler dog , Snot . Eddie later admits that they are living in the RV they drove , as he is broke and has been forced to sell his home . Clark offers to buy gifts for Eddie 's kids so they can still enjoy Christmas . </P>
national lampoon 's christmas vacation who is cousin eddie related to
national lampoon 's christmas vacation who is cousin eddie related to
Ellen
Ellen