We have 2 dogs a husky and a lab. Both about 10-months old. I blew off many fireworks with both dogs watching and they didnt even huff, puff, or bark at all. Just looked at the sparkling lights set off by the fireworks.

I even had some loud pickelo peets that even hurt my ears when i set one off and the dogs just watched them make noise.

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Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
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Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed