ch9.4.rb

 return_val = puts 'This puts returned'
 puts return_val

 def say_moo number_of_moos
 	puts 'moooooooo...' * number_of_moos
 	'yellow submarine'
 end

 x = say_moo 3
 puts x.capitalize + ', dude...'
 puts x            + '.'


 def favorite_food name
 	if name == "Lister"
 		return 'vindaloo'
 	end
 	if name == 'Rimmer'
 		return 'mashed potatoes'
 	end
 	'hard to say...maybe fried plantain?'
 end
 
 def favorite_drink name
 	if name == 'Jean-Luc'
 		'tea, Earl Grey, hot'
 	elsif name == 'Kathryn'
 		'coffee, black'
 	else
 		'perhaps...horchata?'
 	end
 end

 puts ''

 puts favorite_food('Rimmer')
 puts favorite_food('Lister')
 puts favorite_food('Cher')
 puts favorite_drink('Kathryn')
 puts favorite_drink('Oprah')
 puts favorite_drink('Jean-Luc')

 puts ''

 def ask question
 	while true
 		puts question
 		reply = gets.chomp.downcase

 		if (reply == 'yes' || reply == 'no')
 			if reply == 'yes'
 				answer = true
 			else
 				answer = false
 			end
 			break
 		else
 			puts 'Please enter "yes" or "no".'
 		end
 	end
 	answer
 end
 puts 'Hello, and thank you for ...'
 puts

 ask 'Do you like eating tacos?'
 ask 'Do you like eating burritos'
 wets_bed = ask 'Do you wet the bed?'
 ask 'Do you like eating chimicangas?'
 ask 'Do you like eating sopapillas?'
 puts 'Just a few more questions...'
 ask 'Do you like drinking horchata?'
 ask 'Do you like eating flautas?'
 puts
 puts 'DEBRIEFING'
 puts 'Thank you for...'
 puts
 puts wets_bed