Eloquent whereHas - wrong result

I want to see if a model id has a related id in a related table. I have Shipping Profile id 1, and want to check if it has a related Method id 5.

$profile = \App\ShippingProfile::find(1)
          ->whereHas('methods', function($query) {
                  $query->where('id',5);
            })->first();
  return $profile;

From this I get back the Profile 1 - and since that profile has a method of 5, it seems correct. But if I change where to 7, it gives me profile id 2 which I didn't even ask for!

The result gives me whatever profile is related to the method ID I specify in the where clause . Very strange.

The relationship on the ShippingProfile model:

 public function methods() {
        return $this->hasMany('\App\Method');
    }

The relationship on the Method model:

public function profile() {
        return $this->belongsTo('\App\ShippingProfile', 'shipping_profile_id');
    }

via Chebli Mohamed