The party problem for a people-loving breed
Fireworks nights and house parties often arrive together, and for a Golden Retriever the party is the hazard multiplier. Every arrival opens the front door, every guest is a potential friend to follow, and excited voices raise the emotional temperature just as bangs begin outside. Decide in advance that he spends the evening in one room with his main people, door closed, rather than circulating. Put a friendly note on that door if guests need reminding. His last walk happens in daylight, his dinner comes early, and by the time displays begin he is settled with water, a bed and something legal to chew, while the celebrations happen around the edges of his quiet evening.
Company, contact and something for the mouth
Goldens regulate their feelings through people and through their mouths. A worried Golden will carry a toy, mouth a cushion or press his whole weight against your legs, and all three are useful. Provide a long-lasting chew and a soft toy he is allowed to hold, sit where he can lean on you, and keep your responses warm but boring: strokes, low talk, no excited fussing that tells him something big is happening. If he paces to the door at each bang, walk him gently back to his bed and resettle rather than opening doors to show him nothing is there, because each opening lets in more noise, more flashes and another chance to slip past you.
Gentle dogs still bolt
It is easy to under-secure a Golden because he is soft-natured, but a startled retriever is still a strong, fast dog. Check his collar fits so it cannot ride over his head if he backs away from a bang at the garden gate, and do toilet trips on a lead in the garden once the evening begins, even if he is normally reliable off lead at home. Keep fireworks, sparklers and party debris out of his reach entirely, and sweep the garden in the morning before he goes out, because spent firework cases and sticks are exactly the kind of object a mouthy Golden picks up, carries and chews.
When a worried Golden needs a vet
Panting, drooling, following you from room to room and refusing treats are common stress signs that should pass overnight. Contact a veterinarian promptly if he has eaten any part of a firework or party litter, if he vomits repeatedly, has a swollen face, or seems painful or lame after scrambling in panic, or if he is still unable to settle and eat the next day. If he did pick something up and you are unsure what it was, say so honestly when you call, because that detail guides the advice. Note for next time which room and which chew kept him steadiest, since Goldens thrive on a repeatable routine.
A friendly lost Golden will approach strangers happily, which works in his favour if people know who he belongs to, so KinsLe's Lost Pet Alert System lets you alert nearby members and lets whoever he greets message you directly through his profile.