joanofark, how old is max? they all go through a teething stage just like babies. i know finn never seemed to mess with big, stationary objects (like sofas, chairs, tables, etc), but, he chewed anything and everything else. my only suggestion is to put everything up high and leave him unsupervised for as little as possible. finn ate a pair of oakley sunglasses (over $200), he chewed up about $30 in bills (I was so broke at the time, I had to tape them all together, let me tell you how much fun that was!), probably forty pairs of flip flops, my driver's license, shoes, bowls, underwear, tubes of ointment, you name it. i crated him when i wasn't home and while i slept for awhile. he's pretty trustworthy now, but, he'll get destructive if he feels slighted or ignored in some way. my friend's lab was ten times worse, though, because he never crated him, and, couldn't discipline him as he tore things up. he got into everything! he dug in plants, chewed up sofa cushions, broke ceiling fan light fixtures, everything! seriously, though, just try to keep everything up high. or crate max, if you don't already.