Seasick pills and condoms

Mr Johnson had been retired for a year when his wife of fifty years suggested one day, "Why don't we take a cruise for a week and make wild love like we did when we were young?" He thought it over and agreed. Then he put on his hat and went down to the pharmacy. He stepped up to the counter and asked for a bottle of sea-sick pills and a box of condoms.

Upon returning home his wife greeted him saying, "You know dear, I've been thinking, there is no reason we can't go for a month." He then went back to the Pharmacy and asked for twelve bottles of sea-sick pills and a box of condoms.

When he returned his wife said, "You know, since the children are on their own, what is to stop us from cruising the world?" "I'll be right back." Back to the Pharmacy he went. He then asked for 297 bottles of Sea-sick pills and the same amount of condoms. The startled Pharmacist filled the order then said, "You know Mr. Johnson, You have been doing business with me for over thirty years. I certainly don't mean to pry, but if it makes you that sick, why do you do it?