I could never figure out why my shoelaces always became untied. Well, it was ’cause I wasn’t tying a square knot. After I returned to the aquarium, I came back in 1953 as assistant curator. After I got out of the army, I went to work at National Institutes of Health in Bethesda and the National Cancer Institute in the Tissue Culture Section. And my wife and I had to wait until we got our degree from Georgia, Washington. So I continued working at NIH and every year in the Potomac, they have this big herring run and you can go down to the bridge right there in Washington and collect herring either with big dip nets or with big trouble hooks that you cast out and try to snag them on the way back, but they didn’t take a hook. So I happened to write back to Walter Chute and say, I’m here, and I told them the story about collecting. And know he wrote back and says, well, I guess they’re plankton eaters, and the mouth is too small to really take a hook and so forth and so on.