Continuity mistake: Before Mr. Slate takes a picture of his employees, Sandy (the one that Fred gives a hot foot to) is standing by two other men. When Fred gives Sandy a hot foot, the men have disappeared, and when we see the photo that Mr. Slate has taken, they are back again.
Continuity mistake: When Fred goes on the tube to squeeze out some toothpaste, he puts his toothbrush at the end of tube, but the toothpaste he puts on his brush suddenly disappears.
Continuity mistake: When Fred and Barney are at the nurse's desk at the doctor's surgery, Barney is beside Fred when the nurse sees him, but in the shot of the nurse tickling Fred's chin, Barney is missing.
Continuity mistake: When Barney drops Fred off at his home, Fred is standing on the pavement, but in the next shot he is now standing on the grass.
Audio problem: When Barney says "You're about two feet too short" when Fred steps onto the scales, his mouth does not move when he says "short."
Continuity mistake: When we first see Fred and Barney on stage at "The Ed Sullystone Show", the curtain behind them has creases, but in a close-up of the two, it appears completely flat.
Continuity mistake: When Fred sees the small boulder going downwards on the scale, his eyebrows are missing, but re-appear seconds later.
Continuity mistake: When Barney is knocking on the door at Fred's house after seeing an advert in the newspaper, Fred says "I'll get it, Wilma!" and stops near the door. At this point, Fred is well away from the door, but in the next shot he is now standing near the corner of it.
Continuity mistake: When Fred starts shrinking after he has drunk all of the reducing formula, he is holding a mixing bowl in his right hand. When he has fully shrunk, the bowl is nowhere to be seen.
Continuity mistake: At the auditions for "The Ed Sullystone Show", there is a man with a performing dog and when we first see the dog, he has a collar around his neck. When he starts performing, the collar has disappeared.
Continuity mistake: When Fred steps on the scales with the reducing formula, there is a table with chemistry equipment behind him. In the close-up of Fred in the next shot, the table disappears, and in the shot after that, it is back again.
Continuity mistake: When the bird flies back into its box after telling the doctor that Fred and Barney have arrived, the switch on the box is initially pointing down but in the next shot it has moved up.
Continuity mistake: When the nurse says "What a cute little boy!" to Fred at the doctor's surgery, you can see there nothing around Fred, but when the camera closes in on Fred in the next shot, small rocks have appeared.
Continuity mistake: When Bamm-Bamm is placing the plank of wood into the sandpit, you can see that by the sandpit there is a bucket with a spade in it, but in the next shot the spade is now positioned near the sandpit.
Continuity mistake: When the doctor tells Fred to take aspirin twice daily, Fred is positioned near the corner of the doctor's table and Barney is right behind him. But in a close-up of Fred in the next shot, Barney is nowhere to be seen.
Continuity mistake: When Fred is standing next to Ed Sullystone and Ed says "Dumb-looking too" to him during the audition, Fred's size decreases between shots.
Continuity mistake: At the 18th hole, Fred's opponent Ben Boulder hits his tee shot on the fairway. But we see Boulder doing his second shot, he doesn't hit the ball from the fairway; he hits the ball from the same tee box on which he did his first shot.
Continuity mistake: When Betty is talking to Wilma about the job she is doing for the old lady, she chuckles and takes off her wig, but in the next shot the wig is back on her head.
Continuity mistake: When Wilma and Betty are looking at the jobs in the wanted ads, there is a purple cloth between the green and pink cloth on the washing line, but when the two are looking at Dino playing with Pebbles, the purple cloth has disappeared. There's also a basket by Wilma that moves to the end of the washing line.
Continuity mistake: When Fred and Wilma are in their beds, you can see that the holes in the dial of the phone are in a diagonal position, but when we see a close-up of the phone, the holes are now straight.
Answer: The name of the pet is "Baby Puss." He has appeared in episodes, but only a very few. The first episode was probably "The X-Ray Story" from season 2.
Bishop73