The warning comes after 21 dogs were euthanised. Here are the signs to look for.

15.6 inches (39.62 cm) 1920 x 1080 pixels 2.4 Kg, 24.9 mm thick ...

15.6 inches (39.62 cm) 2560 x 1600 pixels 2.4 Kg, 24.9 mm thick ...